| 1 | |
| Researcher: | Daya Ram Singh |
| University: | Banaras Hindu University |
| Language: | English |
| 2 | |
| Researcher: | Ram Kumar |
| University: | Dr Bhimrao Ambedkar University |
| Language: | English |
| 3 | |
| Researcher: | Koli, V R |
| Guide: | Muranjan, S K |
| University: | University of Mumbai |
| Language: | English |