Citation | Alam, M., M. Ashfaq, S. Hassan and A. Ali. 2022. Contamination of groundwater resources and its impact on milk productivity and efficiency of dairy farms: An evidence from Punjab, Pakistan. Sarhad Journal of Agriculture, 38(2): 430-438. DOI | https://dx.doi.org/10.17582/journal.sja/2022/38.2.430.438