1. Yields of the African catfish, Clarias gariepinus (Burchell), from a low input, homestead, concrete pond;Egwui;Aquaculture,1986
2. Rearing of the Nile catfish, Clarias lazera, to marketable size in Egyptian experimental ponds;El Bolock,1975
3. Biological observations on some species used for aquaculture in Nigeria;Elliot,1975
4. Feeding and fertilization in polyculture of commercial freshwater fish: biological and economic aspects applicable to Nigeria;Fagbenro,1980