| 1 | |
| Researcher: | Rattan, Raj Kumar |
| Guide: | Deb, D L |
| University: | Indian Agricultural Research Institute |
| Language: | English |
| 2 | Classification mineralogy and chemical and exchange equilibria of some Sikkim soils |
| Researcher: | Gupta, Raj Kumar |
| Guide: | Singh, T A |
| University: | Govind Ballabh Pant University of Agricultural and Technology |
| Language: | English |