Last Updated on March 8, 2012 by admin
• Obafemi Awolowo University, Ile-Ife. Nigeria. December 1992.
• University of Ife, Ile-Ife Nigeria.  December 1987.
• University of Ilorin, Ilorin. Nigeria.October 1978.
• Agriculture, University of Ife, Ile-Ife. Nigeria. June 1973.
• International Institute of Tropical Agriculture (IITA) Ibadan. Nigeria.May 1975.
• International Agricultural Centre (IAC) Wageningen. The Netherlands.October 1983.
