| 1 | ||
| Researcher: | Kochukunnel, Hector J Thayil | |
| Guide: | Arunachalam P | |
| University: | Cochin University of Science and Technology | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Singh, Prakash | |
| Guide: | Singh, Saumya | |
| University: | Indian School of Mines | |
| Language: | English | |