| 1 | ||
| Researcher: | Kodandarao, Meruvu | |
| Guide: | Ramana, K V | |
| University: | Andhra University | |
| Language: | English | |
| 2 | ||
| Researcher: | Venkara Ramana, Gutala | |
| University: | Andhra University | |
| Language: | English | |
| 3 | ||
| Researcher: | Mehala, S A | |
| Guide: | Chellaperumal, A. | |
| University: | Pondicherry University, Puducherry | |
| Language: | English | |
| Shodhganga | ||