| Assoc Prof Dr | Ronghai | Hu | sity of Chinese Academy of Science | China | |
| Prof Dr | Ronald | Skitmore | Bond University | Australia | View Profile |
| Dr | Rohit | Lorenzo | VIT-AP University | India | |
| Prof Dr | Roger | Leblanc | University of Miami | United States | View Profile |
| Prof | Roberto | Pisano | Politecnico di Torino | Italy | |
| Dr | Roberta | Fusco | University of Messina | Italy | View Profile |
| Mr | Ritobroto | Chanda | University of Texas at Arlington | United States | |
| Ms | Rita Mwendia | Njeru | University of Szeged | Hungary | View Profile |
| Mrs | Rita | Prasetyowati | Universitas Negeri Yogyakarta | Indonesia | View Profile |
| Mr | RISHABH | ARORA | K.R. Mangalam University | India | |
| Dr | Riccardo | Conti | University of Rome Tor Vergata | Italy | |
| Ms | Rehab | Hamed | Beni-Suef university | Egypt | |
| REGASA | BEGNA | MIZAN TEPI UNIVESITY | Ethiopia | |
| Mr | Redwanul | Islam | Khulna University of Engineering & Technology | Bangladesh | View Profile |
| Mrs | Razieh | Fazaeli | university of Waterloo | Canada | View Profile |
| Dr | Razia Sulthana | Abdul Kareem | University of Greenwich | United Kingdom | View Profile |
| Assist Prof Dr | Ray | Saadaoui Mallek | University of Sharjah, College of Business Administration | United Arab Emirates | View Profile |
| Dr | RAVISHANKAR | BELLALA | OMEGA HOSPITAL | India | View Profile |
| Prof Dr | Ravindra | Pandey | Roswell Park Comprehensive Cancer Center | United States | |
| Prof Dr | Raquel | Cantero Téllez | Universidad de Málaga | Spain | View Profile |