| 1 | |
| Researcher: | Balakrishnan, K |
| Guide: | Venkatesan, V V |
| University: | Madurai Kamaraj University |
| Language: | English |
| 2 | |
| Researcher: | Balakrishnan, M |
| Guide: | Alexander, K M |
| University: | University of Kerala |
| Language: | English |
| 3 | |
| Researcher: | Balakrishnan, P V |
| Guide: | Ravindran, T K |
| University: | University of Calicut |
| Language: | English |