| 1 | |
| Researcher: | Harishankar Prasad Singh |
| University: | Tilka Manjhi Bhagalpur University |
| Language: | English |
| 2 | |
| Researcher: | Ananta Rao, Kambhampati |
| Guide: | Roy, R N |
| University: | Rashtrasant Tukadoji Maharaj Nagpur University |
| Language: | English |
| 3 | |
| Researcher: | Murli Das |
| Guide: | Dutta, A |
| University: | Gauhati University |
| Language: | English |