| 1 | |
| Researcher: | Walter, Alexander |
| Guide: | Stephen, J |
| University: | University of Kerala |
| Language: | English |
| 2 | |
| Researcher: | Alexander, Abraham |
| Guide: | George, A B |
| University: | University of Calicut |
| Language: | English |
| 3 | |
| Researcher: | Alexander, C K |
| Guide: | Ravindran, T K |
| University: | University of Kerala |
| Language: | English |