| 1 | ||
| Researcher: | Ramalingeswara Rao, Punamurthula | |
| Guide: | Seshagiri Rao, M G | |
| University: | Andhra University | |
| Language: | English | |
| 2 | ||
| Researcher: | Sumathy, S. | |
| Guide: | Satyanarayana, S. V. M. | |
| University: | Pondicherry University, Puducherry | |
| Language: | English | |
| Shodhganga | ||