^Babatunde Olugboji (1996). Human rights practices in Nigeria, January 1995-June 1996. Constitutional Rights Project. ص. 92. ISBN:978-2944-06-8.
^Oyo State (Nigeria). Ministry of Information, Youth, Sports and Culture (2002). Oyo State past and present. Ministry of Information, Youth, Sports & Culture. ص. 56.
^"Nigeria States". WorldStatesmen. مؤرشف من الأصل في 2010-01-23. اطلع عليه بتاريخ 2010-01-13.