| 1 | ||
| Researcher: | Vijaya Lakshmi M | |
| Guide: | Hari Padma Rani P | |
| University: | Sri Padmavathi Womens University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Kukkamalla, Vijaya Babu | |
| Guide: | Rajasekhar, P | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |