Arun Prasath B.; Sankaranand R.; Nantheeswaran S.; Swetha T.; Anoosha M.; Sunitha P.; Laxmi P.; Lalitha A. Colon Targeted Drug Delivery of Propranolol Hydro Chloride by Using Different Natural Polymers. Int. J. Res. Pharm. Sci. 2011, 2, 353-358.