| 1 | ||
| Researcher: | Pratibha Kumari | |
| Guide: | Singh, Narendra Kumar and Singh | |
| University: | V. B. S. Purvanchal University | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Mishra, Santosh Kumar | |
| Guide: | Singh, Narendra Kumar and Singh | |
| University: | V. B. S. Purvanchal University | |
| Shodhganga | ||