Adil Shehab, Intisar, and Theiaa Al-Sabha. “Spectrophotometric Determination of Aspirin and Pyridoxine Hydrochloride Using 9- Chloroacridin Reagent in Aqueous Solution”. Journal of Education and Science (JES) 29, no. 1 (March 1, 2020): 60–74. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/24144.