| 1 | ||
| Researcher: | T, L, Soni | |
| Guide: | K, P, Mani | |
| University: | Mahatma Gandhi University, Kottayam | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | M, M, Umaiban | |
| Guide: | K, P, Mani | |
| University: | University of Calicut, Kozhikode | |
| Language: | English | |
| 3 | ||
| Researcher: | I, V, Vidhya | |
| Guide: | K, P, Mani | |
| University: | University of Calicut, Kozhikode | |
| Language: | English | |