| 21 | Taxonomy of the aphids of Shillong Assam and its adjacent areas | |
| Researcher: | Basu, Ramesh Chandra | |
| Guide: | Raychaudhuri, D N | |
| University: | University of Calcutta | |
| Language: | English | |
| Shodhganga | ||
| 22 | Studies on the aphids homoptera aphididae of Himachal Pradesh | |
| Researcher: | Das, Sunil Kumar | |
| Guide: | Raychaudhuri, D N | |
| University: | University of Calcutta | |
| Language: | English | |
| Shodhganga | ||
| 23 | Some aspects of aphid Homoptera insecta studies in Sikkim and Bhutan | |
| Researcher: | Agarwala, Basant Kumar | |
| Guide: | Raychaudhuri, D N | |
| University: | University of Calcutta | |
| Language: | English | |
| Shodhganga | ||