Sultan, Saad Hasani, and Zainab Walid Majed. “Spectrophotometric Determination of Bromhexine Hydrochloride by Diazotization and Coupling Method in Its Pharmaceutical Preparations”. Iraqi Journal of Science 61, no. 9 (September 29, 2020): 2172-2181. Accessed December 7, 2021. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1860.