| 1 | ||
| Researcher: | Singh, Ram Bilas | |
| Guide: | Rai, D K | |
| University: | Tilka Manjhi Bhagalpur University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Sinha, Birendra Kumar | |
| Guide: | Pathak, Achutyanand | |
| University: | Tilka Manjhi Bhagalpur University | |
| Language: | English | |
| 3 | ||
| Researcher: | Mishra, Narendra | |
| University: | Tilka Manjhi Bhagalpur University | |
| Language: | English | |