| 1 | |
| Researcher: | Singh, Om Prakash | 
| University: | Banaras Hindu University | 
| Language: | English | 
| 2 | |
| Researcher: | Singh, Birendra Kumar | 
| Guide: | Mitra, R N | 
| University: | University of Calcutta | 
| Language: | English | 
| 3 | |
| Researcher: | Singh, Ranjana | 
| Guide: | Verma, S N | 
| University: | Banaras Hindu University | 
| Language: | English |