| 1 | ||
| Researcher: | Rao, Nirujogi Hanumantha | |
| Guide: | Srinivasan V A | |
| University: | Jawaharlal Nehru Technological University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Puli, Venu Gopala Rao | |
| Guide: | Subba Rao, M | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |