| 1 | ||
| Researcher: | Nirmala Devi | |
| Guide: | Pajni, H R | |
| University: | Panjab University | |
| Language: | English | |
| 2 | ||
| Researcher: | Tyagi, Nirmala Shishir | |
| University: | University of Pune | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Nirmala, Kumari K R | |
| Guide: | Nair, Balakrishnan | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||