| 1 | |
| Researcher: | Singh, Sheo Balal |
| Guide: | Nagendra, S P |
| University: | Deendayal Upadhyay Gorakhpur University |
| Language: | English |
| 2 | |
| Researcher: | Srivastava, Narendra Kumar |
| Guide: | Shukla, A C |
| University: | Deendayal Upadhyay Gorakhpur University |
| Language: | English |