| 1 | ||
| Researcher: | Puppala, Prasanthi | |
| Guide: | Rao, A. Ganagadhara | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| 2 | ||
| Researcher: | Prasanthi ,Kokkeragadda | |
| Guide: | Rao ,V . Srinivasa | |
| University: | University of Hyderabad, Hyderabad | |
| Language: | English | |
| Shodhganga | ||