| 1 | ||
| Researcher: | Thankappan, T K | |
| Guide: | Gopakumar, K | |
| University: | Cochin University of Science and Technology | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Thankappan, V K | |
| University: | Gujarat University | |
| Language: | English | |
| 3 | ||
| Researcher: | Thankappan, V K | |
| Guide: | Pandya, K R | |
| University: | Gujarat University | |
| Language: | English | |
| Shodhganga | ||