| 1 | ||
| Researcher: | Thattil, Babu V | |
| Guide: | Manoj, K P | |
| University: | University of Calicut | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Sebak, Sebi Lal | |
| Guide: | Pandey, A K | |
| University: | Bhupendra Narayan Mandal University, Madhepura (B N Mandal University) | |
| Language: | English | |
| 3 | ||
| Researcher: | Seeja, V. V. | |
| Guide: | Manoj, K P. | |
| University: | University of Calicut, Kozhikode | |
| Language: | English | |