| 21 | ||
| Researcher: | Rao, Mallikharjuna K L N | |
| Guide: | Sivaraju, K | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 22 | ||
| Researcher: | Rao, Mallikharjuna K L N | |
| Guide: | Sivaraju, K | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||
| 23 | ||
| Researcher: | Rao, Mallikharjuna K L N | |
| Guide: | Sivaraju, K | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||