{{cite journal | last1=Babar | first1=M. A. | author2=M. A. Khan | author3=I. Munawar | author4=K. Mahmood | author5=S. G. Abbas | author6=M. Akhtar | year=2016 | title=SIVALHIPPUS NAGRIENSIS (EQUIDAE, MAMMALIA) FROM DHOK PATHAN FORMATION OF SIWALIKS, PAKISTAN | journal=Journal of Animal and Plant Sciences | volume=26 | issue=4 | pages=1172-1177 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2016-JAPS-153}}