T. Numan, A., S. S. Abd-Ulrazzaq, and F. A. Dawood. “Synthesis, Spectroscopic and Adsorption Studies of Cobalt (II) Complex for a Ligand β-Enaminone Derived from”. Ibn AL- Haitham Journal For Pure and Applied Sciences, vol. 29, no. 1, Mar. 2017, https://jih.uobaghdad.edu.iq/index.php/j/article/view/79.