| 1 | ||
| Researcher: | Ram, Balak | |
| Guide: | Bose, A | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Roy, Ram Balak | |
| Guide: | Sharma, S S | |
| University: | Babasaheb Bhimrao Ambedkar Bihar University | |
| Language: | English | |
| 3 | ||
| Researcher: | Choudhari, Ram Balak | |
| University: | Babasaheb Bhimrao Ambedkar Bihar University | |
| Language: | English | |