| 1 | |
| Researcher: | Srivastava, S B |
| University: | University of Allahabad |
| Language: | English |
| 2 | |
| Researcher: | Sharma, I D |
| University: | University of Lucknow |
| Language: | English |
| 3 | |
| Researcher: | Argal, Rajeshwar Prasad |
| University: | Rashtrasant Tukadoji Maharaj Nagpur University |
| Language: | English |