{{cite journal | last1=Ishaq | first1=H. M. | author2=M. Akram | author3=M. E. Baber | author4=A. S. Jatoi | author5=A. W. Sahota | author6=K. Javed | author7=S. Mehmood | author8=J. Hussain | author9=F. Husnain | year=2014 | title=EMBRYONIC MORTALITY IN COBB BROILER BREEDER STRAIN WITH THREE EGG WEIGHT AND STORAGE PERIODS AT FOUR PRODUCTION PHASES | journal=Journal of Animal and Plant Sciences | volume=24 | issue=6 | pages=1623-1628 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-232}}