| 1 | ||
| Researcher: | B., Krupavaram | |
| Guide: | Rao, N. Koteswara | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| 2 | ||
| Researcher: | B, Krupavaram | |
| Guide: | Rao, Nalamolu Koteswara | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||