K. Dawood, Saad, and Falah Fakhree. “Synthesis and Characterization of Fe(II),Co(II),Ni(II),Cu(II) and Zn(II) Complexes With Hexaaza Macromolecule Ligands Derived from Semicarbazide”. Journal of Education and Science 26, no. 5 (December 1, 2013): 178–188. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41321.