| 1 | ||
| Researcher: | Buwa, Sukhdev Raj | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Raj, Bala Kumar | |
| University: | University of Allahabad | |
| Language: | English | |
| 3 | ||
| Researcher: | Bhandari, S K Raj | |
| Guide: | Chatterji, B. N. | |
| University: | University of Lucknow, Lucknow | |
| Language: | English | |
| Shodhganga | ||