| 1 | ||
| Researcher: | Puli, Ratna Sekar | |
| Guide: | Naik, Jagadish M. | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | M Ratna Prakash | |
| Guide: | Rao, Gopala N. | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||