| 1 | administrative structure of Northern India, 323 B C upto 185 B C |
| Researcher: | Singh, Satya Narain |
| Guide: | Mishra, Y K |
| University: | Magadh University |
| Language: | English |
| 2 | |
| Researcher: | Sinha, Satya Narain Prasad |
| Guide: | Prasad, Ram Lakhan |
| University: | Magadh University |
| Language: | English |