| 1 | |
| Researcher: | Chaki, Mahindrachandra |
| University: | University of Calcutta |
| Language: | English |
| 2 | |
| Researcher: | Kamla Devi Singh |
| University: | University Of Delhi |
| Language: | English |
| 3 | |
| Researcher: | Sharma, A |
| University: | University of Lucknow, Lucknow |
| Language: | English |