| 1 | ||
| Researcher: | GRISHMA KANTH | |
| Guide: | R. SIVA RAMA PRASAD | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Rao, Bala Krishna | |
| Guide: | T., Shreekrishna | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |