| 1 | ||
| Researcher: | Pillai, S Gopalakrishna | |
| Guide: | Zacharia, Scaria | |
| University: | Mahatma Gandhi University | |
| Language: | Malayalam | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Pillai, N Gopalakrishna | |
| Guide: | Nambiar, A K | |
| University: | Kannur University | |
| Language: | English | |
| 3 | ||
| Researcher: | Pillai, Gopalakrishna N | |
| Guide: | Damodaran R | |
| University: | Cochin University of Science and Technology | |
| Language: | English | |
| Shodhganga | ||