Shekho, N. H., & Mahmoud, H. A. (2017). Spectrophotometric Determination of Chromium Using Promethazine Hydrochloride - Application in Various Sample. Ibn AL-Haitham Journal For Pure and Applied Sciences, 29(2), 130-143. https://jih.uobaghdad.edu.iq/index.php/j/article/view/91