| 21 | |
| Researcher: | Sinha, Nawal Kishore Prasad |
| University: | Babasaheb Bhimrao Ambedkar Bihar University |
| Language: | English |
| 22 | |
| Researcher: | Srivastava, Nawal Kishore Prasad |
| Guide: | Prasad, Siaram Sharann |
| University: | Babasaheb Bhimrao Ambedkar Bihar University |
| Language: | Hindi |