{{cite journal | last1=Mahmood | first1=H. Z. | author2=M. Qasim | author3=M. Khan | author4=M. I. U. Husnain | year=2014 | title=RE-EXAMINING THE INVERSE RELATIONSHIP BETWEEN FARM SIZE AND PRODUCTIVITY IN PAKISTAN | journal=Journal of Animal and Plant Sciences | volume=24 | issue=5 | pages=1537-1546 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-219}}