1. Awachie, J.B.E., Ezenwaji, H.M.G., 1981. The importance of Clarias spp. in the fisheries development of the Anambra river basin, Nigeria. CIFA Technical Paper 8, pp. 212–224.
2. Bagenal, T.B. (Ed.), 1978. Eggs and early life history: Part I. Fecundity. In: Methods of Assessment of Fish Production in Freshwater, 3rd Edition. Blackwell, Oxford, pp. 165–178.
3. Bailey, N.T.J., 1994. Statistical Methods in Biology, 3rd Edition. Cambridge University Press, Cambridge, 255 pp.
4. The breeding and early development of Clarias gariepinus (Pisces: Clariidae) in Lake Sibaya, with a review of breeding in species of the subgenus Clarias (Clarias);Bruton;Trans. Zool. Soc. London,1979
5. The food and feeding behaviour of Clarias gariepinus (Pisces: Clariidae) in Lake Sibaya, South Africa with emphasis on its role as a predator of cichlids;Bruton;Trans. Zool. Soc. London,1979