Uddin, M. B.; Chowdhury, J. A.; Azam, K. R.; Jalil, R.- ul; Reza, M. S. Preparation and Evaluation of <i>In Vitro</I> Release Kinetics of Theophylline Loaded Matrix Tablet Based on Eudragit NE 30 D and Eudragit RS 30 D. Dhaka Univ. J. Pharm. Sci 2010, 8, 153-159.