Narayana Charyulu R, Denish Bera, Darshan Sakhia, Keyur Manavadaria, and Nisha G Shetty. 2012. “Formulation and Evaluation of Bilayer Floating Tablets of Diltiazem Hydrochloride for Bimodal Release”. International Journal of Research in Pharmaceutical Sciences 3 (2), 301-6. https://pharmascope.org/ijrps/article/view/1038.