| 1 | ||
| Researcher: | Chava, Narayana Rao | |
| Guide: | Rao, V Narasimha | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| 2 | ||
| Researcher: | Marimuthu, R | |
| Guide: | Sekar, S | |
| University: | Bharathidasan University | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Mishra, Prem Sagar | |
| Guide: | Das, Niladri | |
| University: | Indian School of Mines, Dhanbad | |
| Language: | English | |