| 1 | ||
| Researcher: | Veerababu, M | |
| Guide: | Krishna, P V | |
| University: | Acharya Nagarjuna University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | ALAGATURU ASWARTHA NARAYANA | |
| Guide: | VENKATA RATHNAMMA | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||