Kibria, G., and R.- ul Jalil. “<i>In vitro</I> Release Kinetics Study of Diltiazem Hydrochloride from Pellets Using an Ethylcellulose Pseudolatex Coating System”. Dhaka University Journal of Pharmaceutical Sciences, vol. 6, no. 2, Feb. 2008, pp. 87-92, doi:10.3329/dujps.v6i2.681.