| 1 | ||
| Researcher: | Venkateswarlu, S | |
| Guide: | Prasannam, V Lakshmi | |
| University: | Acharya Nagarjuna University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Samudrala, Venkateswarlu | |
| Guide: | Prasannam, V Lakshmi | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |