| 1 | |
| Researcher: | Alpana, |
| Guide: | Narayan, Narendra |
| University: | Bhupendra Narayan Mandal University, Madhepura (B N Mandal University) |
| Language: | English |
| 2 | |
| Researcher: | Jha, Kishore Nath |
| Guide: | Singh, R A |
| University: | Bhupendra Narayan Mandal University, Madhepura (B N Mandal University) |
| Language: | English |