| 1 | ||
| Researcher: | Bhargavi, Darapureddy | |
| Guide: | Rao, Purnachandra P. | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| 2 | ||
| Researcher: | Rao, Kolipaka Venkateswara | |
| Guide: | Rao, Purnachandra P. | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||