Ghedia Tejaskumar P., Patel Parth, Christian Vishal, Panchal Amish, Bamaniya Sanjay and Sangada Kiran 2011. Formulation and Optimisation of Osmotic pump of Propranolol Hydrochloride using EOP and Microporous concepts. International Journal of Research in Pharmaceutical Sciences. 2, 4 (Nov. 2011), 590–595.