| 1 | ||
| Researcher: | Gopalakrishnan, R | |
| Guide: | Adinarayan, S P | |
| University: | Annamalai University | |
| Language: | English | |
| 2 | ||
| Researcher: | Gopalakrishnan, R | |
| Guide: | Devasenapathi, V A | |
| University: | University of Madras | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Gopalakrishnan, R | |
| Guide: | Pandiyarajan, S | |
| University: | Annamalai University | |