| 1 | ||
| Researcher: | Karkapudi, Prem Babu | |
| Guide: | Chandra Kumar | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| 2 | ||
| Researcher: | Dasari, Yedukondalu | |
| Guide: | Rao, Trimurthi M. | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||