Luqmqn Hasan, Shahad, and Saad hasani Sultan. “Utility of 2,2׳- Bipyridyl Reagent in Spectrophotometric Assay of Acetylcysteine in Pure Form and in Its Pharmaceutical Preparations”. Journal of Education and Science (JES) 31, no. 3 (September 1, 2022): 42–53. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23401.