{{cite journal | last1=Agah | first1=M. J. | author2=M. T. Mirakzehi | author3=H. Saleh | year=2019 | title=EFFECTS OF OLIVE LEAF EXTRACT (OL EA EUROPEA L.) ON GROWTH PERFORMANCE, BLOOD METABOLITES AND ANTIOXIDANT ACTIVITIES IN BROILER CHICKENS UNDER HEAT STRESS | journal=Journal of Animal and Plant Sciences | volume=29 | issue=3 | pages=657-666 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2019-JAPS-304}}