| 1 | |
| Researcher: | Polineni, Ramanjaneyulu |
| Guide: | Ch., Kalavathi |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |
| 2 | |
| Researcher: | Sikhapalli, Sarala Devi |
| Guide: | Ch., Kalavathi |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | Telugu |