G. Abed, Amel. “U.V Spectroscopic Study of Benzylidine P-Toluenesulphonomide Schiff- Bases in Absolute Methanol – Direct Determination of Trace Amounts”. Journal of Education and Science 25, no. 4 (December 1, 2012): 12–26. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41204.