| 1 | ||
| Researcher: | Bussa, Walter Ratna Kumar | |
| Guide: | Subba Rao, B | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| 2 | ||
| Researcher: | Ganeshraja, A. S. | |
| Guide: | Anbalagan, K. | |
| University: | Pondicherry University, Puducherry | |
| Language: | English | |
| Shodhganga | ||