CHIGWANDA, R. and CHINOPFUKUTWA, P. 2018. Evaluation of a Hydrophobic–Hydrophilic (Hydrogenated Castor Oil-Gum Tragacanth) Matrix using Propranolol Hydrochloride as Test Drug. The East and Central African Journal of Pharmaceutical Sciences. 10, 3 (Nov. 2018), 68-71.