| 1 | Hindu dharma evam Jain dharma mein samaj darshan ka tulnatmak adhyayan |
| Researcher: | Singh, Prem Bahadur |
| University: | Banaras Hindu University |
| Language: | Hindi |
| 2 | |
| Researcher: | Singh, Prem Nath |
| Guide: | Tiwary, P |
| University: | Magadh University |
| Language: | English |
| 3 | |
| Researcher: | Singh, Prem Pal |
| Guide: | Verma, V S |
| University: | Chandra Shekhar Azad University of Agriculture and Technology |
| Language: | English |
| 4 | Pracheen Bhartiya krishi evam tajjanit samasyaon ka adhyayan 200 B C to 300 A D |
| Researcher: | Singh, Prem Kumar |
| University: | Babasaheb Bhimrao Ambedkar Bihar University |
| Language: | English |