{{cite journal | last1=Adejoro | first1=F. A. | author2=A. Hassen | year=2018 | title=IN VITRO METHANE PRODUCTION OF ERAGROSTIS HAY TREATED WITH GRADED LEVELS OF UREA OR NITRATE | journal=Journal of Animal and Plant Sciences | volume=28 | issue=3 | pages=679-685 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2018-JAPS-302}}