Hasan, H. A., & salman, khaled. (2018). Physiochemical and Antibacterial Studies of Two Tetradentate Ligands Type (N2O2) and Their Complexes withCoII, NiII and ZnII Ions. Ibn AL-Haitham Journal For Pure and Applied Sciences, 31(1), 99-113. https://doi.org/10.30526/31.1.1858