| 1 | ||
| Researcher: | Perumalla, Ravikumar | |
| Guide: | Ch Satyanarayana | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Tera David Raju | |
| Guide: | Ch Satyanarayana | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||