| 1 | ||
| Researcher: | Nakarani, Ashokkumar Durlabhjibhai | |
| Guide: | Shah, K J | |
| University: | Bhavnagar University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Parekh, Bipin T | |
| Guide: | Dave, L D | |
| University: | Bhavnagar University | |
| Language: | English | |
| 3 | ||
| Researcher: | Patel, Manubhai Ambalal | |
| Guide: | Patel, R S | |
| University: | Bhavnagar University | |
| Language: | English | |
| Shodhganga | ||