{{cite journal | last1=Kaygisiz | first1=A. | author2=C. Bengi | author3=S. Cilek | year=2011 | title=INVESTIGATION OF LEPTIN GENE POLYMORPHISMS IN East Anatolian Red Anatolian and Black CATTLE AND DETERMINATION OF GENETIC DISTANCE FROM BROWN SWISS CATTLE | journal=Journal of Animal and Plant Sciences | volume=21 | issue=2 | pages=121-125 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2011-JAPS-206}}