{{cite journal | last1=Khan | first1=M. M. H. | author2=A. S. Chaudhry | year=2011 | title=A COMPARATIVE STUDY OF LOW AND HIGH QUALITY FORAGES FOR CHEMICAL COMPOSITION AND IN VITRO DEGRADABILITY | journal=Journal of Animal and Plant Sciences | volume=21 | issue=4 | pages=715-723 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2011-JAPS-431}}