{{cite journal | last1=Al-Atiyat | first1=Raed M. | year=2012 | title=GENETIC DIVERSITY ANALYSIS OF INDIGENOUS LAYERS IN COMPARISON WITH EXOTIC LAYERS | journal=Journal of Animal and Plant Sciences | volume=22 | issue=4 | pages=840-847 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2012-JAPS-402}}