Hamed Harrafi and  Masoumeh Khedri and  Karim Karaminejad,  Determination of Chemical Oxygen Demand in Spent Caustic by Potentiometric Determination.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2012, vol. 67(7). 559 - 561
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/7364.