| 1 | |
| Researcher: | Sangma, Bilnang |
| Guide: | Marak, Dokatchi Ch. |
| University: | North-Eastern Hill University, Shillong |
| Language: | English |
| 2 | |
| Researcher: | Marak, Colnat B. |
| Guide: | Marak, Fameline K. |
| University: | North-Eastern Hill University, Shillong |
| Language: | English |