| 1 | |
| Researcher: | Prasad, Venkata. K.K.L. |
| Guide: | Prasad, I. Devivara |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |
| 2 | |
| Researcher: | L., Bhagyalaxmi |
| Guide: | Vali, A. Amrutha |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |