Vangara, K.K. et al. 2015. Formulation Development of Metoprolol Succinate Controlled Release Tablets using Ethyl-cellulose-polyvinyl-pyrrolidone Coating. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN). 8, 2 (May 2015), 2851–2857. DOI:https://doi.org/10.37285/ijpsn.2015.8.2.8.