| 1 | Guptkalin evam Harshkalin prashasan mein guptcharo ka mahatva: ek etihasik vivechamn | |
| Researcher: | Ranjan, Prabhat | |
| Guide: | Sah, B N | |
| University: | Bhupendra Narayan Mandal University, Madhepura (B N Mandal University) | |
| Language: | Hindi | |
| 2 | ||
| Researcher: | Ranjan, Prabhat | |
| Guide: | Das, Jayanta | |
| University: | Indian School of Mines, Dhanbad | |
| Language: | English | |
| 3 | ||
| Researcher: | Ranjan,Prabhat | |
| Guide: | Singh,Surya Nath | |
| University: | Savitribai Phule Pune University | |
| Language: | English | |
| Shodhganga | ||