| 1 | ||
| Researcher: | Ghanbari Sissan, M A | |
| Guide: | Leelamma, S | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Chopra, Suresh Kumar | |
| Guide: | Singh, NAggarwal, C K | |
| University: | Ch Charan Singh Haryana Agricultural University | |
| Language: | English | |