Thembelihle Nkonyane and Freeman Ntuli and Edison Muzenda, Treatment of Acid Mine Drainage Using Un- Activated Bentonite and Limestone. journal = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2012, vol. 68(8). 667 - 672 [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/8043.