“Flow Injection- Spectrophotometric Determination of Salbutamol Sulphate and Pyridoxine Hydrochloride Using 2,4-Dinitrophenylhydrazine”. Iraqi Journal of Science, vol. 54, no. 1, Dec. 2023, pp. 6-16, https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12013.