S. Al-Ghabsha, T., N. Al-Sabha, T., & M. Saeed, A. (2006). Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4-(2-pyridylazo)-resorcinoI. Journal of Education and Science (JES), 18(1), 11–21. https://doi.org/10.33899/edusj.2006.79220