| Abu Bakar | Siddique | Ghulam Ishaq Khan Institute of Engineering Sciences and Technology | Pakistan | Computer Science | Artificial Intelligence | worldtopscientists.com |
| Abir | Azri | Higher Institute of Biotechnology, University of Monastir, Tunisia | Tunisia | Biochemistry, Genetics and Molecular Biology | Association study between human SNPs and the severity of COVID-19 | worldtopscientists.com |
| Abiodoun Pascal | OLOUNLADE | National University of Agriculture | Benin | Agricultural and Biological Sciences | Biochemistry, Pharmacognosy, Zootechnics | worldtopscientists.com |
| Abel | Kinyondo | University of Dar es Salaam | Tanzania | Economics, Econometrics and Finance | Mining | worldtopscientists.com |
| Abel | Kinyondo | University of Dar es Salaam | Tanzania | Economics, Econometrics and Finance | Mining | worldtopscientists.com |
| Abeer | EL- Sayed | Botany and Microbiology Department, Faculty of Science, Damanhour University | Egypt | Other | Applied and Food Microbiology | worldtopscientists.com |
| Abear | El-Gamal | Cairo University | Egypt | Physics and Astronomy | Materials Science | worldtopscientists.com |
| Abdulmajeed | Alotaibi | KSAU-HS | Saudi Arabia | Other | Radiological Sciences | worldtopscientists.com |
| Abdullah | Al Nahian | Children's Clinic of Michigan | United States | Health Professions | Data Analyst | worldtopscientists.com |
| عبدالله | البشير | King Faisal University | Saudi Arabia | Chemistry | كيمياء تحليلية | worldtopscientists.com |
| ABDULKADIR | KESKIN | İstanbul medeniyet üniversity | Turkey | Social Sciences | Numeric Method | worldtopscientists.com |
| ABDULBAKİ | BİLGİÇ | Bilecik Şeyh Edebali University/Department of Management Information Systems | Turkey | Veterinary Science and Veterinary Medicine | Calf losses | worldtopscientists.com |
| Abdulaziz G. | Alghamdi | King Saud University | Saudi Arabia | Agricultural and Biological Sciences | Soil Sciences | worldtopscientists.com |
| Abdul | Wassay | National Defence University Islamabad | Pakistan | Social Sciences | International Relations and Strategic Studies | worldtopscientists.com |
| Abdul | Mujib | Jamia Hamdard | India | Agricultural and Biological Sciences | Plant Science | worldtopscientists.com |
| Abdul Ganiwu | Mohammed | C.K. Tedam University of Technology and Applied Sciences | Ghana | Chemistry | Analytical Chemistry | worldtopscientists.com |
| abdolah | Dadazadeh | University of Tabriz | Iran | Pharmacology, Toxicology and Pharmaceutical Science | Food chemistry and medicinal plants | worldtopscientists.com |
| Abderrezzaq | Benalia | Higher Normal School of Constantine, Algeria | Algeria | Engineering | Environmental engineering | worldtopscientists.com |
| Abderrezzaq | Benalia | Higher Normal School of Constantine | Algeria | Engineering | Environmental Engineering | worldtopscientists.com |
| Abdel Nasser | Singab | Ain Shams University | Egypt | Pharmacology, Toxicology and Pharmaceutical Science | Drug Discovery | worldtopscientists.com |