| 1 | ||
| Researcher: | S Surya Narayana | |
| Guide: | Krishna Satya Alapati | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Surya, Narayana S | |
| Guide: | Satya, Krishna A. | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||