| 1 | ||
| Researcher: | Manduru Venkata Ramana | |
| Guide: | Subrahmanyam, A | |
| University: | Acharya Nagarjuna University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Angani, Hari Krishna | |
| Guide: | Sekhar, M. Ravi | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |