soujanya, Banavat, et al. “Influence of Casting Solvent and Polymer on Permeability of Propranolol Hydrochloride through Eudragit RL-100 and Eudragit RLPO Films”. Asian Journal of Pharmaceutical Research and Development, vol. 2, no. 5, Sept. 2014, pp. 9-15, https://ajprd.com/index.php/journal/article/view/217.