{{cite journal | last1=Niamatullah | first1=M. | author2=K. U. Zaman | author3=M. A. Khan | year=2010 | title=IMPACT OF SUPPORT PRICE AND FERTILIZER OFFTAKE ON RICE PRODUCTION AND WHEAT ACREAGE IN NWFP, PAKISTAN | journal=Journal of Animal and Plant Sciences | volume=20 | issue=1 | pages=28-33 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2010-JAPS-113}}