Ashour, Safwan. “Advances in Quality Control through the Development of a More Sustainable and Eco-Friendly Direct Spectrophotometric Method Than Pharmacopoeial Methods for the Determination of Bisoprolol Fumarate”. Drug Analytical Research 9, no. 1 (March 30, 2026): 22–31. Accessed August 9, 2026. https://seer.ufrgs.br/index.php/dar/article/view/146133.