1. Afolabi, O.N., Adeyemi, S.A., Imevbore, A.M.A., 1985. Studies of the toxicity of some Nigerian crude oils to some aquatic organisms. In: Proceedings of the International Seminar on the Petroleum Industry and the Nigerian Environment. FMW&HH/NNPC, pp. 269–273.
2. Anderson, P.D., Weber, L.J., 1975. The toxicity to aquatic population of mixtures containing certain heavy metals. In: Proceedings of the International Conference on Heavy Metal in the Environment. Inst. of Environmental Studies, Univ. of Toronto, pp. 933–953.
3. Probit Analysis;Finney,1971
4. A Unified theory for quantal responses to mixtures of drugs;Hewlett;Biometrics,1969
5. Imevbore, A.M.A., Adeyemi, S.A., Afolabi, O.A., 1984. Studies on the toxicity of Nigerian crude oils: A technical report submitted to the Nigerian National Petroleum Corporation (NNPC) by Eco-development Consultancy Group, Institute of Ecology, University of Ife, Nigeria, 272pp.