Luqmqn Hasan, Shahad, and Saad hasani Sultan. 2022. “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 (3):42-53. https://doi.org/10.33899/edusj.2022.134059.1246.