{{cite journal | last1=Eze | first1=D. C. | author2=E. C. Okwor | author3=W. U. Anike | author4=H. M. Kazeem | author5=K. A. Majiyagbe | year=2014 | title=EFFECT OF CHROMIUM PROPIONATE ON THE HUMORAL IMMUNE RESPONSE AND PERFORMANCE OF BROILERS VACCINATED AGAINST NEWCASTLE DISEASE IN THE TROPICS | journal=Journal of Animal and Plant Sciences | volume=24 | issue=6 | pages=1709-1715 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-245}}