| 1 | ||
| Researcher: | Chopra, Ravinder Kumar | |
| Guide: | Lakhanpal, T N | |
| University: | Himachal Pradesh University | |
| Language: | English | |
| Shodhganga | ||
| 2 | Sampling on successive occasions in two dimensional populations | |
| Researcher: | Mahajan, Ravinder Kumar | |
| Guide: | Srivastava, A K | |
| University: | Indian Agricultural Research Institute | |
| Language: | English | |