{{cite journal | last1=Jafarnejad | first1=A. | author2=M.A. Kamali | author3=S.J. Fatemi | author4=M. Aminafshar | year=2017 | title=GENETIC EVALUATION OF LAYING TRAITS IN IRANIAN INDIGENOUS HENS USING UNIVARIATE AND BIVARIATE ANIMAL MODELS | journal=Journal of Animal and Plant Sciences | volume=27 | issue=1 | pages=20-27 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2017-JAPS-03}}