Gaware, R U, K Sarvanan, and S L Jadhav. “PH Independent Controlled Release of Verapamil Hydrochloride Using HPMC-Alginate Matrices & Organic Acids”. Journal of Applied Pharmaceutical Research 13, no. 5 (October 31, 2025): 232-244. Accessed August 22, 2026. https://www.japtronline.com/index.php/joapr/article/view/1272.