1. Afolabi JA 2008. Economics of Fadama Farming in Ondo State, Nigeria. Paper presented at the 4th annual conference on Agriculture in Nigerian Wetlands in Federal University of Technology, Akure, May 21”, 2008.
2. Grubben GJH, Denton AO 2004. Plant Resources of Tropical Africa. Wageningen: Vegetable Prota foundation.
3. Kontsoyiannis A 1977. Theory of Econometrics London: Macmillan Press Limited.
4. McCollum JP 1980. Production Vegetable Crops. New York: Interstate Printers.
5. Norman NP 1978. Food Science. New York: AVI Publishing Company.