| 1 | ||
| Researcher: | Ravikumar, D | |
| Guide: | Senthamizh Pavai, S | |
| University: | Alagappa University | |
| Language: | Tamil | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Ravikumar, D R | |
| Guide: | Vittal, B P r | |
| University: | University of Madras | |
| Language: | English | |
| 3 | ||
| Researcher: | Ravikumar, D. B. | |
| Guide: | Maruthi, T. R. | |
| University: | University of Mysore | |
| Language: | English | |
| Shodhganga | ||