| 1 | ||
| Researcher: | Suresh Kumar, P K | |
| Guide: | Devarajan, G | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Suresh Kumar P K | |
| Guide: | Pushpangadan P ;Subramoniam A; Krishnan P N | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||