| 1 | |
| Researcher: | Bimal, Binay Kumar |
| Guide: | Kumar, Ashok |
| University: | Bhupendra Narayan Mandal University |
| Language: | English |
| 2 | |
| Researcher: | Vishwakarma, Binay Kumar |
| Guide: | Nayak, Suresh |
| University: | Bhupendra Narayan Mandal University, Madhepura (B N Mandal University) |
| Language: | English |