“FORMULATION AND CHARACTERIZATION OF MATRIX AND TRIPLE-LAYER MATRIX TABLETS FOR CONTROLLED DELIVERY OF METOPROLOL TARTRATE”. International Journal of Pharmaceutical Sciences and Drug Research 3, no. 1 (January 1, 2011): 23–28. Accessed October 17, 2025. https://ijpsdronline.com/index.php/journal/article/view/117.