| 1 | |
| Researcher: | Viswanathan, S |
| Guide: | Rama Sarma, M V |
| University: | Sri Venkateswara University |
| Language: | English |
| 2 | |
| Researcher: | Viswanathan, S |
| Guide: | Ramasarma, M V |
| University: | Sri Venkateswara University |
| Language: | English |
| 3 | |
| Researcher: | Viswanathan, R |
| Guide: | Andrews, George V |
| University: | University of Calicut |
| Language: | English |