| 1 | Petrography of the productive coal seans of the Bokaro coalfield, Bihar |
| Researcher: | Casshyap, S M |
| Guide: | Ganjee, P N |
| University: | Aligarh Muslim University |
| 2 | Petrography of the productive coal seams of the bokaro coalfield, Bihar |
| Researcher: | Casshyap, Satyendra M |
| University: | Aligarh Muslim University |
| Language: | English |