{{cite journal | last1=Ahmed | first1=S. | author2=A. N. Khosa | year=2010 | title=AN INTRODUCTION TO DNA TECHNOLOGIES AND THEIR ROLE IN LIVESTOCK PRODUCTION: A REVIEW | journal=Journal of Animal and Plant Sciences | volume=20 | issue=4 | pages=305-314 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2010-JAPS-403}}