Abdulwahab, A. Q. “Spectrophotometric Determination of Ranitidine-HCl in Pure Form and Pharmaceutical Formulations With Metol and Potassium Hexacyanoferrate (ΙΙΙ)”. University of Thi-Qar Journal of Science, Vol. 4, no. 3, July 2019, pp. 101-7, https://www.jsci.utq.edu.iq/index.php/main/article/view/640.