{{cite journal | last1=Islam | first1=M. | author2=H. Ahmad | author3=J. Alam | author4=H. Ali | author5=M. Fahim | author6=M. Hanif | year=2019 | title=FOUR NEW RECORDS OF THE GENUS PYRUS (ROSACEAE) FROM PAKISTAN | journal=Journal of Animal and Plant Sciences | volume=29 | issue=2 | pages=483-491 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2019-JAPS-219}}