{{cite journal | last1=Iqbal | first1=Z. | author2=R. Ali | author3=J. I. Sultan | author4=A. Ali | author5=Z. Kamran | author6=S. A. Khan | author7=U. Ahsan | year=2014 | title=IMPACT OF REPLACING GRAPE POLYPHENOL WITH VITAMIN E ON GROWTH PERFORMANCE, RELATIVE ORGANS WEIGHT AND ANTIOXIDANT STATUS OF BROILERS | journal=Journal of Animal and Plant Sciences | volume=24 | issue=5 | pages=1579-1583 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-225}}