| 1 | |
| Researcher: | Tewari, S D |
| Guide: | Pant, G B |
| University: | Kumaun University |
| Language: | English |
| 2 | |
| Researcher: | Bordoloi, N D |
| Guide: | Kagti, L C |
| University: | Gauhati University |
| Language: | English |
| 3 | |
| Researcher: | Bhardwaj, D C |
| University: | University of Lucknow |
| Language: | English |