References
- Kockum, S. (1953). Protection of Cob Maize Stored in Cribs. E. Afr. agric. J., Vol. XIX.
- Kockum, S. (1958). Control of Insects Attacking Maize on the Cob in Crib Stores. E. Afr. agric. J., Vol. XXIII.
- Volterra, V. (1931). Varations and fluctuations of the number of individuals in animal species living together—In Chapman, R.N. Animal Ecology. New York McCaw-Hill.