Promise Sethembiso Ngema and Freeman Ntuli and Mohamed Belaid, The removal of Ni, Cu and Fe from a Mixed Metal System using Sodium Hypophosphite as a Reducing Agent. journal = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2012, vol. 68(8). 864 - 867 [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/5356.