| 1 | ||
| Researcher: | Sanguvathi P | |
| Guide: | Achuthan R | |
| University: | Periyar University | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Manvizhi A | |
| Guide: | Achuthan R | |
| University: | Periyar University | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Vidhya R | |
| Guide: | Achuthan R | |
| University: | Periyar University | |
| Shodhganga | ||
| 4 | ||
| Researcher: | Jayanthi V | |
| Guide: | Achuthan R | |
| University: | Periyar University | |
| Shodhganga | ||