Mezaal, E. N., Sadiq, K. A., Zaki, A. N., & Rumez, R. M. (2017). Spectrophotometric Determination of Cu(II) by Complex with Ethyl Cyano(2-Methyl Carboxylate Phenyl Azo Acetate) (ECA). Ibn AL- Haitham Journal For Pure and Applied Sciences, 30(1), 96–106. Retrieved from https://jih.uobaghdad.edu.iq/index.php/j/article/view/1063