| Dr | Sabastine | Emmanuel | Universiti Sains Malaysia/Federal University Lokoja | Malaysia |
| Mr | S Muhammad Ahmed | Hassan Shah | Central South University | Pakistan |
| Dr | Rym | GHARIANI | university of sfax | Tunisia |
| Dr | Rummana Kauser Shabbir Ahmed | Kauser | Mohammadiya Tibbia college and hospital | India |
| Assist Prof Dr | Rummana | Kauser | Mohammadiya Tibbia college and assayer hospital Malegaon | India |
| Dr | Ruiming | Xie | Nanjing University of Science and Technology | China |
| Assoc. Prof. Dr | Ruifeng | Dong | North University of China | China |
| Assoc. Prof. Dr | Rui | WU | Department of Economics,Hubei University of Science and Technology | China |
| Mr | Robert | Otieno | Multimedia University of Kenya | Kenya |
| Assist. Prof. Dr | Rizka Ayu | Setyani | Universitas Sebelas Maret | Indonesia |
| Assist. Prof. Dr | Rizka Ayu | Setyani | Universitas Sebelas Maret | Indonesia |
| Assist. Prof. Dr | Rizka Ayu | Setyani | Universitas Sebelas Maret | Indonesia |
| Prof. Dr | RIANE | Rabah | University of Ibn Khaldoun --Tiaret (Algeria) | Algeria |
| Prof. Dr | RIANE | Rabah | University of Ibn Khaldoun --Tiaret (Algeria) | Algeria |
| Assist Prof Dr | Rezgar | Hasanzadeh | Kermanshah University of Technology | Iran |
| Assist. Prof. Dr | Rezgar | Hasanzadeh | Kermanshah University of Technology | Iran |
| Ms | Rehana | Shahin | MMMUT Gorakhpur | India |
| Assoc. Prof. Dr | Rehab | Hussein | National Research Centre | Egypt |
| Ms | Rawane | Mansour | Université de Perpignan Via Domitia (UPVD), LAMPS | France |
| Prof | Ravisankar | Panchumarthy | Vignan Pharmacy College | India |