| Researcher: | Ravikiran D. |
| Guide: | S.V. Naga Srinivasu |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |
| 2 | |
| Researcher: | Marlene Grace Verghese, D |
| Guide: | Vinaya Babu, A |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |
| 3 | |
| Researcher: | Payarda, V R D Prasada Rao |
| Guide: | Govardhan, A |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |