| 1 | ||
| Researcher: | Dakka, Prabhavathi | |
| Guide: | Vijayalakshmi | |
| University: | University of Hyderabad, Hyderabad | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Kesana, Mohanalakshmi | |
| Guide: | Babu, T. Ranga | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |