M. . Nouaman and I. . Mohamd, “Extraction of Copper(II)From Sulphates Phase using O,O Diphenyl [(E)-2-Cyano-1-Methylvinyl] Amido Phosphate and O,O Diphenyl [(E)-2-Cyano-1-Methylvinyl]Amido Thio Phosphate In Methane Dichloride”, TUJ-BA, vol. 39, no. 3, Feb. 2019.