| 1 | ||
| Researcher: | K. Madhavi | |
| Guide: | M. Thrimurthy Rao | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Khandavalli, Surya Prabha | |
| Guide: | Srigouri, K | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |