S. Othman, N., نبیل, H. Abdul -alsalam Alhafid, and هبه. “Spectrophotometric Estimation of Para-Aminophenol via Oxidative Coupling Reaction With 4-Chlororesorcinol –Application to Paracetamol”. Journal of Education and Science (JES), vol. 30, no. 5, Dec. 2021, pp. 136-4, doi:10.33899/edusj.2021.131045.1186.