| 21 | ||
| Researcher: | Nallavelugula, Radha | |
| Guide: | Rao, M. Koteswara | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| 22 | ||
| Researcher: | Parida ,Srutikantha Devidutta | |
| Guide: | Mishra ,Prajna Paramita and G. Nancharaiah | |
| University: | University of Hyderabad, Hyderabad | |
| Language: | English | |
| Shodhganga | ||