| 1 | |
| Researcher: | Walter, Alexander |
| Guide: | Stephen, J |
| University: | University of Kerala |
| Language: | English |
| 2 | |
| Researcher: | Alexander, K C |
| Guide: | Mall, L P |
| University: | Vikram University |
| Language: | English |
| 3 | |
| Researcher: | Alexander, K C |
| Guide: | Ramakrishnan, K |
| University: | University of Calicut |
| Language: | English |