| 1 | |
| Researcher: | Katachella, Balaram |
| Guide: | Rao, N. V. Krishna |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | Telugu |
| 2 | |
| Researcher: | Srinivas, Gourarapu |
| Guide: | Rao, N. V. Krishna |
| University: | Acharya Nagarjuna University, Guntur |
| Language: | English |