| 1 | ||
| Researcher: | R.KRISHNAN | |
| Guide: | DR.J.THIRUMALAI | |
| University: | B S Abdur Rahman University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Renju R Krishnan | |
| Guide: | Gopchandran K G; Mahadevan Pillai V P | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Nair, P R Krishnan | |
| Guide: | Nandakumaran V M | |
| University: | Cochin University of Science and Technology | |
| Language: | English | |
| Shodhganga | ||