{{cite journal | last1=Ali | first1=Q. | author2=M. Ashfaq | author3=M. T. I. Khan | year=2017 | title=AN ECONOMIC ANALYSIS OF OFF-SEASON TOMATO PRODUCTION IN PUNJAB | journal=Journal of Animal and Plant Sciences | volume=27 | issue=1 | pages=294-301 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2017-JAPS-36}}