| 1 | |
| Researcher: | Prabhakara Rao, M |
| Guide: | Suryanarayana, J |
| University: | Sri Venkateswara University |
| Language: | Telugu |
| 2 | |
| Researcher: | Prabhakara Rao, Muppidi Samuel |
| Guide: | Chakradhara Rao, L |
| University: | Andhra University |
| Language: | Telugu |
| 3 | |
| Researcher: | Samuel Prabhakara Rao, M |
| University: | Andhra University |
| Language: | Telugu |