Al-Nama, K., ک, A. Abdullah, and أ.أ. “Synthesis and Characterization of Mn(II) ,Co(II) ,Ni(II) ,Cu(II) ,Zn(II) and Cd(II) Complexes With Di-Schiff Bases Derived from O- or M- Phenylenediamine and 9,10-Phenanthrenequinone”. Journal of Education and Science (JES), vol. 26, no. 5, Dec. 2013, pp. 93-104, doi:10.33899/edusj.2013.163059.