| 1 | Studies on coal macerals with special reference to high sulphur coals of India  | 
| Researcher: | Ray, Manmohan | 
| University: | Jadavpur University | 
| Language: | English | 
| 2 | |
| Researcher: | Sahni, Manmohan | 
| Guide: | Sharma, T R | 
| University: | University of Jammu | 
| Language: | English | 
| 3 | |
| Researcher: | Sahni, Manmohan | 
| Guide: | Sharma, T R | 
| University: | University of Jammu | 
| Language: | English |