{{cite journal | last1=Offem | first1=B. O. | author2=Y. A. Samsons | author3=I. T. Omoniyi | year=2008 | title=REPRODUCTIVE ASPECTS OF COMMON FRESHWATER FISHES IN THE CROSS RIVER, NIGERIA | journal=Journal of Animal and Plant Sciences | volume=18 | issue=4 | pages=NA | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2008-JAPS-407}}