{{cite journal | last1=Adinya | first1=I. B. | year=2009 | title=ANALYSIS OF COSTS-RETURNS PROFITABILITY IN GROUNDNUT MARKETING IN BEKWARRA LOCAL GOVERNMENT AREA CROSS RIVER STATE, NIGERIA | journal=Journal of Animal and Plant Sciences | volume=19 | issue=4 | pages=212-216 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2009-JAPS-401}}