Fahad Naif Almutairi | Polymer-Matrix composites | Best Researcher Award

Dr. Fahad Naif Almutairi | Polymer-Matrix composites | Best Researcher Award

Assistant Professor at Shaqra University, Saudi Arabia

Dr. Fahad Naif Almutairi is an accomplished researcher and educator with expertise in material characterization, nanotechnology, thin films, and photonics. He holds a Ph.D. in Electronic Engineering from Bangor University, UK, where his research focused on the photovoltaic behavior of organic solar cells, contributing to advancements in renewable energy solutions. With over two decades of academic and teaching experience, he currently serves as a Physics Lecturer at Shaqra University, where he inspires students through practical learning and research-driven teaching. Dr. Almutairi has published extensively in peer-reviewed journals, with notable contributions in laser-induced breakdown spectroscopy (LIBS) for soil and material analysis. His proficiency in advanced tools such as Homer Pro and PV F-Chart, combined with strong skills in scientific writing, data analysis, and critical thinking, underscores his versatility as a researcher. Fluent in Arabic and English, Dr. Almutairi is a dedicated professional committed to advancing science and education.

Professional Profile 

Education

Dr. Fahad Naif Almutairi has a strong academic foundation in physics and electronic engineering, reflecting his dedication to scientific excellence. He earned his Doctor of Philosophy in Electronic Engineering in 2021 from Bangor University, UK, where his research focused on the effect of chemically modified transport layers on the photovoltaic behavior of organic solar cells, contributing to advancements in renewable energy technology. Prior to this, he completed his Master of Science in Physics in 2012 from King Saud University, KSA, with a thesis analyzing soil around Riyadh using Laser-Induced Breakdown Spectroscopy (LIBS), showcasing his expertise in material characterization and environmental analysis. He began his academic journey with a Bachelor’s degree in General Physics in 2001, also from King Saud University, building a strong foundation in fundamental physics. Dr. Almutairi’s diverse education reflects his commitment to interdisciplinary research and innovation in both theoretical and applied sciences.

Professional Experience

Dr. Fahad Naif Almutairi brings over two decades of professional experience in teaching, research, and academic leadership. Since 2013, he has been serving as a Physics Lecturer at Shaqra University, where he develops and delivers comprehensive courses on topics such as thermodynamics, translational motion, and rotational dynamics. He has also organized seminars, supervised laboratory sessions, and mentored students to foster a deeper interest in physics. Prior to this role, Dr. Almutairi spent over a decade teaching physics under the Ministry of Education, where he excelled in creating engaging, hands-on learning experiences for students of varying ages and abilities. His ability to simplify complex concepts and encourage critical thinking has made him a respected educator. In addition to teaching, Dr. Almutairi is an active researcher, contributing to advancements in material science and renewable energy. His professional journey reflects a blend of academic excellence and a commitment to fostering scientific curiosity.

Research Interest

Dr. Fahad Naif Almutairi’s research interests are deeply rooted in material science, nanotechnology, and renewable energy, with a focus on advancing innovative solutions for global challenges. His expertise spans material characterization, thin films, and nanomaterials, reflecting his dedication to exploring the structural and functional properties of materials at the nanoscale. Dr. Almutairi is particularly interested in thin film deposition techniques and their applications in optics, photonics, and renewable energy systems. His doctoral research on the photovoltaic behavior of organic solar cells highlights his commitment to developing efficient and sustainable energy technologies. Additionally, he has made significant contributions to the field of Laser-Induced Breakdown Spectroscopy (LIBS), applying this advanced technique to analyze soil, rocks, and fertilizers for environmental monitoring and resource management. Dr. Almutairi’s interdisciplinary approach underscores his passion for combining physics, engineering, and technology to drive impactful scientific innovations.

Award and Honor

Dr. Fahad Naif Almutairi has been recognized for his contributions to academia, research, and education throughout his career. His academic journey and professional endeavors have earned him respect and recognition within the scientific and educational communities. His doctoral research on organic solar cells has been acknowledged for its potential to advance renewable energy technologies. Dr. Almutairi’s published works in esteemed journals have contributed to the fields of material characterization and Laser-Induced Breakdown Spectroscopy (LIBS), further establishing his reputation as a dedicated researcher. Additionally, his two-decade-long teaching career has been marked by his role as a Physics Lecturer at Shaqra University, where he has received commendations for his efforts in inspiring and mentoring students. Through his academic achievements, impactful research, and commitment to fostering scientific curiosity, Dr. Almutairi continues to be a valued contributor to the advancement of science and education.

Conclusion

Fahad Naif Almutairi has a robust academic background, significant teaching experience, and notable research contributions in material characterization and renewable energy. His technical expertise, dedication to education, and interdisciplinary approach align with the qualities of a strong candidate for the Best Researcher Award.

To further strengthen his candidacy, he could focus on enhancing his research output, seeking patents or commercial applications for his work, and fostering international collaborations. With these efforts, he could emerge as a leading researcher in his field. Overall, he is a highly suitable candidate for this award.

Publications Top Noted

  • Elemental analysis of fertilizer using laser-induced breakdown spectroscopy
    Authors: WA Farooq, FN Al-Mutairi, AEM Khater, AS Al-Dwayyan, MS AlSalhi
    Year: 2012
    Citations: 45
  • Qualitative analysis and plasma characteristics of soil from a desert area using LIBS technique
    Authors: WA Farooq, W Tawfik, FN Al-Mutairi, ZA Alahmed
    Year: 2013
    Citations: 29
  • Monitoring of Inorganic Elements in Desert Soil Using Laser-induced Breakdown Spectroscopy
    Authors: W Tawfik, WA Farooq, FN Al-Mutairi, ZA Alahmed
    Year: 2015
    Citations: 14
  • Analysis of rocks around capital of Kingdom of Saudi Arabia using laser-induced breakdown spectroscopy
    Authors: WA Farooq, FN Al-Mutairi, ZA Alahmed
    Year: 2013
    Citations: 14
  • Impact of CoFe1.98Nb0.02O4 phase on the structural, morphological, and dielectric properties of barium titanate material
    Authors: Y Slimani, MA Almessiere, SE Shirsath, E Hannachi, A Baykal, N Alwadai, FN Almutairi
    Year: 2023
    Citations: 10
  • Investigations on the matrix composite [BiFeO3 (BFO)-ZnFe2O4 (ZFO)-SrFe12O19 (SFO)]’s magneto-dielectric characteristics and its application of technology
    Authors: R Ramadan, FN Almutairi, GA Alzaidy
    Year: 2023
    Citations: 9
  • Optimizing the efficiency of Polymer Solar cells based on Core-Shell PAni@ZnO composites utilizing argon plasma treatment
    Authors: NM Alresheedi, A Ghitas, FN Almutairi, MA Shahat
    Year: 2024
    Citations: 6
  • Comparative analysis of adsorption of Pb (II) ions by different hexagonal nanoferrites synthesized using the flash-combustion method
    Authors: R Ramadan, GA Alzaidy, FN Almutairi, V Uskoković
    Year: 2023
    Citations: 6
  • Oxygen enriched PAni-based counter electrode network toward efficient dye-sensitized solar cells (DSSCs)
    Authors: MA Shahat, A Ghitas, FN Almutairi, NM Alresheedi
    Year: 2024
    Citations: 3
  • Lead‐Free Halide Perovskites for optoelectronic application: Investigation of Structural, Optical, Electric and Dielectric behaviors
    Authors: I Garoui, FN Almutairi, I Mbarek, A Oueslati
    Year: 2024
    Citations: 3
  • Synthesis, Structural characterization and complex impedance analysis of a novel organic-inorganic hybrid compound based on Mercury (II) chloride
    Authors: I Garoui, M Mallek, FN Almutairi, W Rekik, A Oueslati
    Year: 2024
    Citations: 3
  • Morphological, optical and electrochemical properties of tin (II) 2, 3-naphthalocyanine for organic electronic applications
    Authors: AM Hassanien, AN AlHazaa, AA Atta, TA Altalhi, MS Refat, GAM Mersal, FN Almutairi
    Year: 2023
    Citations: 3
  • Influence of Sn doping on the structure, optical, and electrical properties of p-type cuprous iodide thin films
    Authors: SM Ali, A Almohammedi, MS AlGarawi, SS AlGhamdi, H Kassim, FN Almutairi
    Year: 2023
    Citations: 3
  • Probing the Optoelectronic and Thermoelectric Performance of Inorganic Halide Perovskite Rb2KInI6 for Renewable Energy Applications via DFT Computations
    Authors: M Manzoor, JA Abraham, R Sharma, M Aslam, A Kumar, FN Almutairi
    Year: 2024
    Citations: 1
  • Fabrication of Ba0.97La0.02Ti0.9Nb0.08O3 polycrystalline with improved dielectric and Raman studies using a flux method synthesis
    Authors: M Jebli, J Dhahri, MA Albedah, FN Almutairi, H Belmabrouk
    Year: 2023
    Citations: 1

Parami Ama Shakya | Materials | Best Researcher Award

Parami Ama Shakya | Materials | Best Researcher Award

Ms. Parami Ama Shakya, University of Kelaniya, Sri Lanka.

Publication profile

Orcid

Education and Experience

📚 Education
  • M.Phil in Physics – University of Kelaniya (reading) 🎓
  • B.Sc. Honours in Physics – University of Kelaniya (2017–2021) 🎓
    • Key Courses: Physics, Pure Mathematics, Electronics 📐
    • GPA: 3.57 (Second Upper Class) 🌟
  • G.C.E. Advanced Level Examination – Physical Science Stream (2016) 📜
  • G.C.E. Ordinary Level Examination – 2012 📝
💼 Experience
  • Temporary Demonstrator (Aug 2022 – Dec 2022) – Department of Physics & Electronics, University of Kelaniya 📊
  • Temporary Research Assistant (Dec 2022 – Oct 2024) – University of Kelaniya 🔬
  • Physicist (Dec 2024 – Present) – Sri Lanka Scientific Service 🧪

Suitability For The Award

Ms. Parami Ama Shakya, a dedicated physicist currently pursuing her M. Phil in Physics at the University of Kelaniya, Sri Lanka, is an outstanding candidate for the Best Researcher Award. With a B.Sc. Honours in Physics and a second upper class GPA of 3.57, Parami’s research has shown exceptional depth and innovation in the areas of thin-film electroplating, photoanode design for solar cells, and electrochemical properties of materials. Her continued research contributions have demonstrated her potential as a leading figure in the realm of material science and renewable energy applications.

Professional Development 

Publications Top Notes

“A Study on Cu Thin-Film Electroplated TiO₂ Photoanodes for Applications in Natural Dye-Sensitized Solar Cells,Crystals, 2024 📄 “

 

Patrick Hartwich | Construction Materials | Best Researcher Award

Patrick Hartwich | Construction Materials | Best Researcher Award

Mr. Patrick Hartwich, Universität Siegen, Germany.

Publication profile

Scopus
Orcid

Education and Experience

  • Postgraduate Studies in Toxicology and Environmental Protection
    University of Leipzig (09/2016 – 06/2018) 🎓
    Certificate: Specialist Chemist in Toxicology
  • Master of Science in Chemistry
    University of Siegen (10/2011 – 09/2012) 🎓
  • Bachelor of Science in Chemistry
    University of Siegen (04/2007 – 09/2011) 🎓
  • Abitur (High School Graduation)
    Gymnasium Wilnsdorf (08/1997 – 06/2006) 🎓

Suitability For The Award

Mr. Patrick Hartwich is an ideal candidate for the Best Researcher Award, with a remarkable academic and professional background, strong research contributions, and expertise in material science, construction chemistry, and environmental protection. His experience spans over a decade, during which he has made significant strides in both academia and industry.

Professional Development 

Awards and Honors

  • “Star of Self Strengthening among Chinese College Students” (2023) ⭐
  • National Silver Award at the “Internet+ Innovation and Entrepreneurship” competition 🏆
  • Research Award for environmental compatibility of building materials 🌱
  • Best Paper Award in International Cement and Concrete Conferences 🏅
  • Outstanding Achievement in Construction Materials Research 🌍

Publications

  • Nanodentistry aspects explored towards nanostructured ZrO2: Immobilizing zirconium-oxide nanotube coatings onto zirconia ceramic implant surfaces (2023, Open Ceramics) – 2 citations 📚🔬🦷
  • Transfer of a Photocatalytically Active TiO2 Nanotube Array onto Cementitious Materials (2022, ACS Applied Materials and Interfaces) – 0 citations 📡🧪🏗️
  • Influence of leachate composition on the leaching behaviour of concrete (2017, Cement and Concrete Research) – 39 citations 🌍🧱💧

Dou Hu | Ceramic Composites | Best Researcher Award

Dou Hu | Ceramic Composites | Best Researcher Award

Dr. Dou Hu, The University of Hong Kong, China.

Publication profile

Scopus
Googlescholar

Education and Experience

  • 🎓 Postdoctoral Fellow (2024) – The University of Hong Kong, Hong Kong
  • 🎓 Doctor of Engineering in Materials Science (2024) – Northwestern Polytechnical University (NWPU), Xi’an, China
  • 🎓 Master of Engineering in Materials Science (2020) – Northwestern Polytechnical University (NWPU), Xi’an, China
  • 🎓 Bachelor of Engineering in Composite Materials & Engineering (2017) – Northwestern Polytechnical University (NWPU), Xi’an, China

Suitability For The Award

Dr. Dou Hu is a distinguished materials scientist whose innovative contributions to additive manufacturing, ceramic and composite materials design, and high-temperature oxidation have established him as a leader in the field. With an impressive publication record and significant accolades, he is highly deserving of the Best Researcher Award.

Professional Development 

Awards and Honors

  • 🏅 2024 – One Hundred National Postgraduate Model of Party Members (Top 1%)
  • 🌟 2023 – Star of Self Strengthening among Chinese College Students (Top 1‰)
  • 🥈 2022 – National Silver Award, The 8th China International College Students’ “Internet+” Innovation and Entrepreneurship Competition (Top 1‰ globally)

Publications

  • 📘 ZrC modified carbon/carbon composites using ZrSi2 and Zr-Cu alloys as reactive infiltrating materials – 2024Journal of Alloys and Compounds; Cited by: 1 🔬
  • 📘 Ablation resistant C/C-HfC-ZrC-TaC-SiC composites prepared by reactive melt infiltration – 2024Ceramics International; Cited by: 0 🌟
  • 📘 Ablation resistant behavior of silicide modified HfB2-SiC coating on graphite by spark plasma sintering: Role of MeSi2 addition – 2024Journal of the European Ceramic Society; Cited by: 1 🔥
  • 📘 Improving repair performance for damaged C/C composites via heat-treatment temperature optimization and surface pretreatment – 2024Journal of Materials Science & Technology; Cited by: 6 🛠️
  • 📘 Insights into (Hf-Zr-Ta-Nb) C thermal protective system: Ablation behavior, morphology evolution and atomic bonding – 2024Ceramics International; Cited by: 7 🚀
  • 📘 Insights into service-derived Zr-Ta-O film: Morphology evolution, temperature resistance, and atomic bonding – 2024Journal of the European Ceramic Society; Cited by: 6 🌐
  • 📘 Effects of air plasma flame on the ZrB2-based UHTC coatings: Microstructure, phase evolution and ablation resistance – 2023Journal of Materials Science & Technology; Cited by: 16 🌟

Timo Preußler | Composite Materials | Best Researcher Award

Timo Preußler | Composite Materials | Best Researcher Award

Mr. Timo Preußler, Technical University of Kaiserslautern, Germany.

Publication profile

Orcid

Education and Experience

  • 🎓 Doctoral Student: Lightweight Design, University of Stuttgart
  • 🔧 Diploma in Mechanical and Process Engineering: Technical University of Kaiserslautern (2015-2022), specialized in construction technology and product design
  • 🌍 Semester Abroad: École supérieure ENSEIRB-MATMECA, Bordeaux (2018-2019)
  • 🔬 Research Projects: IVW, focusing on composite materials and hydrogen transport
  • 🛠️ Scientific Assistant: Institute of Vehicle Propulsion Systems, TUK, worked on hydrogen combustion engines
  • 🚤 Water Sports Coordinator: University Sports of TUK
  • 🧑‍🔬 Internships: Herrenknecht AG (2020-2021), Tool manufacture Linn Hoppstädten-Weiersbach (2015)

Suitability For The Award

Mr. Timo Preußler is an emerging researcher with an impressive background in mechanical and process engineering, especially in the areas of sustainable composite materials and lightweight design. His ongoing research as a doctoral student at the University of Stuttgart highlights his expertise in functionalizing polymer materials for composites, a field with significant implications for green engineering and industrial applications. His comprehensive experience in both theoretical research and hands-on projects underscores his skill in applying scientific knowledge to address real-world engineering challenges, a quality that is critical for a Best Researcher Award candidate.

Professional Development 

Awards and Honors

  • 🥈 2nd Place: Student Competition “Congenial Composite Carrier” (2022)
  • 🥈 2nd Place: Project “Integrated Design Engineering Education” (2017)
  • 🏅 Physics Award: German Physical Society, for outstanding achievement in physics (2015)

Publications

Development of a Low-Expansion and Low-Shrinkage Thermoset Injection Moulding Compound Tailored to Laminated Electrical Sheets (2024) 🌍🛠️, World Electric Vehicle Journal | Cited by: 1

Ilaria Papa | Composite Materials | Women Researcher Award

Ilaria Papa | Composite Materials | Women Researcher Award

Dr. Ilaria Papa , University of Naples Federico II, Italy.

Publication profile

Orcid

Googlescholar

Scopus

Education and Experience

  • Lecturer in Management and Control of Processing Systems at the University of Naples ‘Federico II’ since 2021. 🎓
  • Researcher (RTDB) in Processing Technologies at the Chemical, Material, and Industrial Production Engineering Department since February 2024. 🧪
  • Researcher (RTDA) for the PON ‘Research and Innovation’ project from December 2021. 🔍
  • PhD in Aerospace Engineering from the University of Naples ‘Federico II’, 2012. 🎖️
  • Various research and teaching roles at esteemed institutions, including temporary teaching contracts and research grants. 📜

Suitability For The Award

Dr. Ilaria Papa is an exemplary candidate for the Women Researcher Award, showcasing remarkable contributions to the fields of aerospace engineering, materials science, and industrial production. Her educational background includes a Ph.D. in Aerospace Engineering, a Master’s in Aerospace and Astronautical Engineering, and an extensive teaching and research career, currently as a researcher at the prestigious University of Naples ‘Federico II.’ Dr. Papa has been involved in cutting-edge research projects, such as the study of metallic coatings on polymer-matrix composite substrates using cold spray technology and the survivability of marine composites under extreme environments. These endeavors highlight her expertise in both theoretical and experimental approaches to material technology and manufacturing systems.

Professional Development (💼🔬)

Awards and Honors (🏆🎖️)

  • Chairman of the Dynamic Response and Failure of Composite Materials conference, showcasing leadership in her field. 🏆
  • Guest Editor for various special issues in reputable journals, including the Journal of Mechanical Engineering Science. 📖
  • Editor of conference proceedings, contributing to the dissemination of research findings. ✍️
  • Multiple contributions as a reviewer for international journals, recognizing her expertise and influence in the field. ✅

Publication

Haifeng Li | composite structures | Best Researcher Award

Haifeng Li | composite structures | Best Researcher Award

Prof.Haifeng Li, Huaqiao University , China.

Prof.Haifeng Li is a Professor and Associate Dean at Huaqiao University, Xiamen, China, specializing in civil engineering. With a Ph.D. from Tongji University, his research focuses on seismic behavior, fatigue analysis, and structural resilience. His work on steel and composite structures, including seismic design and energy dissipation mechanisms, is highly regarded. He has been instrumental in projects funded by the National Natural Science Foundation of China. Haifeng Li actively contributes to the field through publications and professional memberships, including the Stability and Fatigue Committee of the Chinese Steel Structures Association. 🏗️🔬

Publication Profile

 

Suitability Of The Award

Haifeng Li is a prominent researcher at Huaqiao University, specializing in Structural Engineering, Mechanical Engineering, and Civil Engineering. His research focuses on critical areas such as seismic behavior and design theory of prefabricated structures and new types of steel box bridge piers. Here are key factors supporting his suitability for the Best Researcher Award:

Education 🎓 And Experience 💼

🎓 Ph.D. in Building Engineering from Tongji University (2011)
🎓 Master’s in Civil Engineering from Hohai University (2008)
👨‍🏫 Professor at Huaqiao University, Xiamen Campus (2019–present)
📚 Associate Dean of College of Civil Engineering at Huaqiao University (2020–present)
🔬 Associate Professor at Huaqiao University (2016–2019)
📖 Lecturer at Huaqiao University (2012–2015)

Professional Development

Prof.Haifeng Li is a distinguished Professor and Associate Dean at Huaqiao University’s College of Civil Engineering, specializing in seismic behavior and energy dissipation in structures. With a Ph.D. from Tongji University, he has made significant contributions to earthquake-resilient design and fatigue analysis 🌍. His research focuses on innovative steel and composite structures, including seismic-resistant bridge piers and fatigue mechanisms 🏗️. Dr. Li is actively involved in several professional associations, including the Stability and Fatigue Committee of the Chinese Steel Structures Association 🔍. His work, supported by multiple grants, addresses critical issues in structural engineering and resilience 🚧.

Research Focus

Prof. Haifeng Li’s research focuses on seismic behavior and energy dissipation in civil engineering structures. His expertise includes studying the resilience of buildings and bridges during earthquakes 🌍, particularly in enhancing the performance of steel and composite structures 🏗️. Dr. Li investigates innovative solutions for seismic-resistant designs and fatigue analysis 🔬. His work aims to improve structural safety and durability under extreme conditions, contributing to more robust and resilient infrastructure 🚧. He is also involved in developing new materials and technologies for better energy dissipation and structural stability during seismic events 🛠️.

Publications 📚📝

  • Experimental and Parametric Analysis of Pull-Out Resistance of Notched T-Perfobond Connectors (2024) – Cited by 5 📊
  • Seismic Performance of GFRP-Rubberized Concrete-Steel Hybrid Solid Columns (2023) – Cited by 10 🏛️
  • Quantifying the Fatigue Life of Wind Turbines in Cyclone-Prone Regions (2022) – Cited by 8 🌪️
  • Seismic Behavior of Box Steel Bridge Pier with Built-In Energy Dissipation Steel Plates (2022) – Cited by 12 🌉
  • Mechanical Behavior of Q460 High-Strength Steel under Low-Cycle Fatigue Loading (2022) – Cited by 6 🔧
  • Experimental Study of Low Yield Point Steel LYP100 under Monotonic and Cyclic Tensile Loading (2020) – Cited by 15 🛠️
  • Seismic Behaviour of Eccentrically Compressed Steel-Box Bridge-Pier Columns with Embedded Energy-Dissipating Shell Plates (2020) – Cited by 7 🌍

Conclusion

Haifeng Li is an outstanding candidate for the Best Researcher Award due to his innovative contributions to seismic engineering, structural design, and material science. His work addresses pressing issues in infrastructure safety and resilience, demonstrating a commitment to advancing engineering knowledge and practice. The recognition from the National Natural Science Foundation of China further underscores the significance and impact of his research.

Mr. Kaan Nuhoglu | 3D printing of composites Awards | Best Researcher Award

Mr. Kaan Nuhoglu | 3D printing of composites Awards | Best Researcher Award

Mr. Kaan Nuhoglu , University of Miami , United States

Kaan Nuhoğlu is a dedicated mechanical engineer pursuing his Ph.D. at the University of Miami, where he specializes in the analysis and optimization of composite materials and adhesive joints. Born on August 19, 1995, Kaan is multilingual, fluent in English, German, and Spanish. His academic journey began at Ege University in İzmir, Turkey, where he earned his bachelor’s degree in mechanical engineering, followed by a master’s degree from Izmir Institute of Technology. Kaan is proficient in various technical tools such as Solidworks, AutoCAD, ANSYS, Moldex3D, Matlab, and CatiV5, and has contributed significantly to his field through several publications in high-impact journals. His research focuses on improving the mechanical behavior of composite structures, evidenced by his recent work on laser-treated composites and the use of nanofibers in adhesive joints. Kaan combines his technical skills with a passion for continuous personal and professional growth, aiming to advance his expertise daily​

Professional Profile:

Scopus
Google Scholar
Orcid

🎓 Education

  • Mechanical Engineering BSc
    Ege University, İzmir, Turkey
  • Mechanical Engineering MSc
    Izmir Institute of Technology, İzmir, Turkey
  • Mechanical Engineering Ph.D.
    University of Miami, Miami, USA

🛠️ Computer Skills

  • Solidworks: 2D, 3D CAD Modeling
  • AutoCAD: 2D Design
  • ANSYS: FEA
  • Moldex3D: Molding Simulation and Analysis
  • Matlab: Numerical Computing
  • CatiV5: 3D CAD Modeling
  • Microsoft Office

🌐 Language Skills

  • English
  • German
  • Spanish
Publication Top Notes: