S. H. Ahmed, E. M. El Gammal, M. I. Amin, and W. M. Yousef, “Studying the Effect of Potassium Amyl Xanthate Surfactant on Fe, Cu and U Ions for the Pretreatment of Abu Zeneima Sulphate Leach Liquor”, Period. Polytech. Chem. Eng., vol. 65, no. 3, pp. 408–415, Jan. 2021.