| 1 | ||
| Researcher: | Venkata, Pavan Kumar | |
| Guide: | Prameela Rani A | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Subastri, A. | |
| Guide: | Thirunavukkarasu, C. | |
| University: | Pondicherry University, Puducherry | |
| Language: | English | |
| Shodhganga | ||