| 1 | ||
| Researcher: | Rajakannan, Thiyagu | |
| Guide: | Bairy, K Laxminarayana | |
| University: | Manipal University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Buch, Anand Mukeshbhai | |
| Guide: | Umarania, V. V. | |
| University: | Saurashtra University, Rajkot | |
| Language: | English | |
| 3 | ||
| Researcher: | Ramenani, Hari Babu | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | Arabic | |