H. A. Hasan, “Fluorescence, Biological Activity and Spectroscopic Studies of Azo-linked Schiff Base Ligand Type (ONO) and Its Complexes with CrIII, CoII NiII and CdII Ions”, IHJPAS, vol. 30, no. 3, pp. 114–129, Dec. 2017, doi: 10.30526/30.3.1607.