M. H Alnaimi, M., & محمد. (1999). Estimation of kinetics varieties for activation of azo dyes derived from the reaction of ortho-2 substituents,4-dihydroxy benzylidine anilin with diazotized sulphanilic acid sodium salt. Journal of Education and Science (JES), 24(2), 29–44. https://doi.org/10.33899/edusj.1999.58749