| 1 | |
| Researcher: | Yadav, Sunil | 
| Guide: | Yadav, Dinesh | 
| 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 |