| 1 | |
| Researcher: | Sen, Bibhutibhusan |
| University: | University of Calcutta |
| Language: | English |
| 2 | |
| Researcher: | Bal Krishna |
| University: | University of Allahabad |
| Language: | English |
| 3 | |
| Researcher: | Sen, Bibhutibhushan |
| University: | University of Calcutta |
| Language: | English |
| 4 | |
| Researcher: | Majumdar, Ganesh Gangadhar |
| University: | University of Mumbai |
| Language: | English |