“Development and Validation of a Stability Indicating HPLC Method to Determine Diltiazem Hydrochloride in Tablets and Compounded Capsules”. Brazilian Journal of Pharmaceutical Sciences 53, no. 3 (January 1, 2017): e00041. Accessed May 2, 2024. https://www.revistas.usp.br/bjps/article/view/134898.