| 1 | |
| Researcher: | Singh, Hari Gobind |
| Guide: | Singh, B P |
| University: | Magadh University |
| Language: | English |
| 2 | |
| Researcher: | Singh, Hari Shankrer |
| Guide: | Tewari, K M |
| University: | Patna University |
| Language: | English |
| 3 | |
| Researcher: | Singh, Hari Bancsh |
| Guide: | Jauhari, M |
| University: | Banaras Hindu University |
| Language: | English |