| 1 | Mauryakaleen Bhartiya samaj mein jati vyavastha: Ek samajik itihasik adhyayan |
| Researcher: | Singh, Bijay Kumar |
| Guide: | Biswas, D K |
| University: | Tilka Manjhi Bhagalpur University |
| Language: | English |
| 2 | Bihar ke harijanon kee arthik evem samajik sthiti: Khangadiya Jile ka ek adhyayan |
| Researcher: | Singh, Arbind Kumar |
| Guide: | Saran, Prasant |
| University: | Tilka Manjhi Bhagalpur University |
| Language: | English |