| 1 | ||
| Researcher: | Joseph, K V | |
| Guide: | Sebastian, Babu | |
| University: | Mahatma Gandhi University | |
| Language: | Malayalam | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Joseph, K J | |
| Guide: | Nair, P V Ramachandran | |
| University: | Cochin University of Science and Technology | |
| Language: | English | |
| Shodhganga | ||