| Researcher: | Ponnada, Venkata Tulasi Ramu |
| Guide: | Srinivasu, S.V. Naga |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |
| 2 | |
| Researcher: | Vejendla, Muralidhar |
| Guide: | Prasad, R. Satya |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |