{{cite journal | last1=Al-Khamis | first1=H. H. | author2=F. M. Al-Hemaid | author3=A. S. S. Ibrahim | year=2012 | title=DIVERSITY OF PERENNIAL PLANTS AT IBEX RESERVE IN SAUDI ARABIA | journal=Journal of Animal and Plant Sciences | volume=22 | issue=2 | pages=484-492 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2012-JAPS-241}}