S. Abdulsalam and  A. D. I. Suleiman and  N. M. Musa and  M. Yusuf,  Bioremediation of Hydrocarbon and Some Heavy Metal Polluted Wastewater Effluent of a Typical Refinery.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 110(2). 245 - 249
    [viewed 30 March 2020]. Available from: https://publications.waset.org/pdf/10003830.