| 1 | ||
| Researcher: | Raju, N | |
| Guide: | Kutty, K Kumaran | |
| University: | University of Calicut | |
| Language: | English | |
| 2 | ||
| Researcher: | Y Vijayananda Raju | |
| Guide: | N Sriramaraju | |
| University: | University of Hyderabad, Hyderabad | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Prasada Raju, D R | |
| University: | Andhra University | |
| Language: | English | |