| 1 | ||
| Researcher: | Das, Subha Narayan | |
| Guide: | Podile, Appa Rao | |
| University: | University of Hyderabad, Hyderabad | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Rama Krishna G V S | |
| Guide: | Poda, Sudhakar | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||