Iwegbue, C., Nwajei a, G. and Arimoro, F. (2007) “Characteristic Levels of Total Petroleum Hydrocarbons in Soil, Sediment and Surface Water of an Oil Impacted Area in the Niger Delta”, Biological Sciences - PJSIR, 50(4), pp. 247–250. Available at: https://v2.pjsir.org/index.php/biological-sciences/article/view/973 (Accessed: 10 May 2024).