Ek Ngoy and  A F Mulaba-Bafubiandi,  Mathematical Simulation of Acid Concentration Effects during Acid Nitric Leaching of Cobalt from a Mixed Cobalt-Copper Oxide.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2012, vol. 61(1). 19 - 23
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/8030.