M. M. Mashingaidze and C. N. Shifotoka, “Copper recovery from chalcopyrite flotation plant tailings acid leach using ion exchange resin dowtm XUS 43578.00”, IJET, vol. 7, no. 2.23, pp. 317–322, Apr. 2018, doi: 10.14419/ijet.v7i2.23.12752.