| 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 |