WASET
    F. C. Khong and  M. H. Isa and  S. R. M. Kutty and  S. A. Farhan,  Anaerobic Treatment of Produced Water.   journal   = {International Journal of Biotechnology and Bioengineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2012, vol. 62(2). 55 - 59
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/3953.