{{cite journal | last1=Duifhuis-Rivera | first1=T. | author2=C. Lemus-Flores | author3=M. Á. Ayala-Valdovinos | author4=D. R. Sánchez -Chiprés | author5=J. Galindo-García | author6=K. Mejía-Martínez | author7=E. González-Covarrubias | year=2014 | title=POLYMORPHISMS IN BETA AND KAPPA-CASEIN ARE NOT ASSOCIATED WITH MILK PRODUCTION IN TWO HIGHLY TECHNIFIED POPULATIONS OF HOLSTEIN CATTLE IN MEXICO | journal=Journal of Animal and Plant Sciences | volume=24 | issue=5 | pages=1316-1321 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-191}}