{{cite journal | last1=Ramzan | first1=M. | author2=M. Akhter | author3=A. Rehman | author4=M. Salim | year=2007 | title=CARRYOVER AND POPULATION BUILD-UP OF INSECT PREDATORS IN RICE-WHEAT SYSTEM | journal=Journal of Animal and Plant Sciences | volume=17 | issue=4 | pages=2002-2005 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2007-JAPS-411}}