| 1 | |
| Researcher: | Prasad, Ishwari |
| University: | University of Allahabad |
| Language: | English |
| 2 | |
| Researcher: | Sinha, Jogischandra |
| University: | University of Calcutta |
| Language: | English |
| 3 | |
| Researcher: | Sinha, Harishchandra |
| University: | University of Calcutta |
| Language: | English |