| 1 | ||
| Researcher: | Nair, K P Sukumaran | |
| Guide: | Pillai, V N Rajasekharan | |
| University: | Mahatma Gandhi University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Chacko, Sheela | |
| Guide: | Padmanabhan, M | |
| University: | Mahatma Gandhi University | |
| Language: | English | |
| Shodhganga | ||