| 1 | ||
| Researcher: | Rajamanickam, M. | |
| Guide: | Balakrishnan, S. | |
| University: | Pondicherry University, Puducherry | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Rao, M L Narasimha | |
| Guide: | S Vijaya Raju | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||