Islam, M.S., Chowdhury, J.A. and Tania, S.M. 2011. Study on the Development of Diltiazem HCl Loaded Colonic Drug Delivery Systems (CDDS) Using Various Polymers and Characterization of their Release Profiles by <i>In Vitro</i> Dissolution Studies. Dhaka University Journal of Pharmaceutical Sciences. 9, 1 (Apr. 2011), 7–13. DOI:https://doi.org/10.3329/dujps.v9i1.7424.