Al-Hasani, T., Al-witry, Z., & Hashim, R. (2017). Synthesis and Characterization of Ag+ ,Pb+2 ,Fe+3 ,Cr+3 Complexes with the New Antipyrene – Azo Ligand. Ibn AL-Haitham Journal For Pure and Applied Sciences, 22(2). https://jih.uobaghdad.edu.iq/index.php/j/article/view/1251