| 1 | |
| Researcher: | Agarwal, Jyoti Prasad |
| University: | Dr Bhimrao Ambedkar University |
| Language: | English |
| 2 | |
| Researcher: | Wadhwa, Yag Dutt |
| University: | University of Calcutta |
| Language: | English |
| 3 | |
| Researcher: | Aggarwal, S P |
| University: | University Of Delhi |
| Language: | English |