{{cite journal | last1=Rashid | first1=A. | author2=M. Asim | author3=A. Hussain | year=2008 | title=SEROPREVALENCE OF PESTE DES PETITS RUMINANTS (PPR) VIRUS IN GOATS, SHEEP AND CATTLE AT LIVESTOCK PRODUCTION RESEARCH INSTITUTE BAHADURNAGAR OKARA | journal=Journal of Animal and Plant Sciences | volume=18 | issue=4 | pages=80-90 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2008-JAPS-403}}