| 1 | ||
| Researcher: | Murali M | |
| Guide: | Satyanarayana P V V | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Sivarama, Krishna. Veeranki | |
| Guide: | C, Rambabu | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |