Marapur, S C, D S Wali, B S Hunasagi, M Chetankumar, and R G Patil. “Formulation and Evaluation of Transdermal Drug Delivery System of Verapamil Hydrochloride”. Journal of Drug Delivery and Therapeutics 8, no. 6-s (December 15, 2018): 70–77. Accessed January 29, 2026. https://www.jddtonline.info/index.php/jddt/article/view/2081.