| 1 | ||
| Researcher: | Ragini Singh | |
| Guide: | Dr. Madhuri Singh | |
| University: | V. B. S. Purvanchal University | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Singh, Ragini | |
| Guide: | Haridas, N | |
| University: | Sardar Patel University | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Singh, Ragini | |
| Guide: | Singh, Pradeep Kumar ; Singh | |
| University: | V. B. S. Purvanchal University | |
| Shodhganga | ||
| 4 | ||
| Researcher: | Sinha, Ragini | |
| Guide: | Chattopadhyay, Sharmila | |
| University: | University of Calcutta, Kolkata | |
| Language: | English | |