H. Hadi, “Spectrophotometric Determination of Vancomycin Hydrochloride in Pharmaceutical Preparations through Diazotization and Coupling Reactions”, Iraqi Journal of Science, vol. 55, no. 4B, pp. 1684–1693, Jul. 2023, Accessed: Dec. 09, 2025. [Online]. Available: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/10739