| 1 | ||
| Researcher: | Roy, Dulal Chandra | |
| Guide: | Mukhopadhyay, R S | |
| University: | University of North Bengal | |
| Language: | English | |
| Shodhganga | ||
| 2 | Some contributions to sample survey theory and its applications | |
| Researcher: | Roy, Dulal Chandra | |
| Guide: | Aggrawal, M C | |
| University: | University of Delhi | |
| Language: | English | |
| 3 | study on orthocladiinae (Diptera: Chironomidae) of eastern india | |
| Researcher: | Sinha Roy, Dulal Chandra | |
| Guide: | Choudhury, Deb Kumar | |
| University: | University of Burdwan | |
| Language: | English | |