WASET
    D. E. Egirani and  J. E. Andrews and  A. R. Baker,  Characterization and Geochemical Modeling of Cu and Zn Sorption Using Mixed Mineral Systems Injected with Iron Sulfide under Sulfidic-Anoxic Conditions I: Case Study of Cwmheidol Mine Waste Water, Wales, United Kingdom.   journal   = {International Journal of Geotechnical and Geological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 104(8). 1075 - 1083
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10006204.