| 1 | ||
| Researcher: | Narayanan, Lakshmi K | |
| Guide: | Vijaykumar, K P | |
| University: | Cochin University of Science and Technology | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Kutty, Narayanan M | |
| Guide: | Vijayakumar, K C | |
| University: | University of Calicut | |
| Language: | English | |
| 3 | ||
| Researcher: | Narayanan, Lakshmi K. | |
| Guide: | Vijayakumar, K. P. | |
| University: | Ganpat University | |
| Language: | English | |
| Shodhganga | ||