| 1 | ||
| Researcher: | K, Dasaradharamaiah | |
| Guide: | Gangadhar, K | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Karam, Durga Rao | |
| Guide: | P.P.S., Paul Kumar | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |