| 1 | Studies on levels and time of nitrogen application in upland rice | |
| Researcher: | Singh, Harbir | |
| University: | Govind Ballabh Pant University of Agricultural and Technology | |
| Language: | English | |
| 2 | ||
| Researcher: | Singh, Harbir | |
| Guide: | Sarma, K N | |
| University: | Gauhati University | |
| Language: | English | |
| Shodhganga | ||
| 3 | SAARC sangh ka pratham dashak 1985-1994 lakshyon evam uplabdhiyon ka mulyakan | |
| Researcher: | Singh, Harbir | |
| Guide: | Sharma, Mohan Lal | |
| University: | University of Rajasthan | |
| Language: | Hindi | |