| 1 | ||
| Researcher: | Rao, S Rama Mohana | |
| Guide: | Rao, I MuralikrishnaRao, A Narasimha | |
| University: | Andhra University, Waltair | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Dokka, Jagan Mohana Rao | |
| Guide: | N, Vijaya Ratnam | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | Telugu | |