G. ABED, A. U.V Spectroscopic study of Benzylidine p-toluenesulphonomide Schiff- bases in absolute methanol – Direct determination of trace amounts. Journal of Education and Science (JES), [S. l.], v. 25, n. 4, p. 12–26, 2012. DOI: 10.33899/edusj.2012.65242. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23070. Acesso em: 6 aug. 2025.