{{cite journal | last1=Idrees | first1=M. | author2=M. U. G. Khan | year=2015 | title=A REVIEW: CONCEPTUAL DATA MODELS FOR BIOLOGICAL DOMAIN | journal=Journal of Animal and Plant Sciences | volume=25 | issue=2 | pages=337-345 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-48}}