| 1 | ||
| Researcher: | Gattim, Naveen Kishore | |
| Guide: | Rajesh, V. | |
| University: | Koneru Lakshmaiah Education Foundation | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Vejendla, Muralidhar | |
| Guide: | Prasad, R. Satya | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |