| 1 | |
| Researcher: | Rao, S Someswara |
| Guide: | Sekhar, M. Ravi |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |
| 2 | |
| Researcher: | Singh, Binod Kumar |
| Guide: | Jha, Pawan Kumar |
| University: | Bhupendra Narayan Mandal University, Madhepura (B N Mandal University) |
| Language: | English |