| 1 | ||
| Researcher: | Chandrika, M P | |
| Guide: | Ramankutty, P V | |
| University: | University of Calicut, Kozhikode | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Banerjee, Pranab Kumar | |
| Guide: | Sengupta, Bratindra K R | |
| University: | Rabindra Bharati University | |
| Language: | English | |