WASET
    Catherine K. Thubakgale and  Richard K.K. Mbaya and  Kaby Kabongo,  Leaching Behaviour of a Low-grade South African Nickel Laterite.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 767 - 771
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/13415.