Vangara, K. K., Konda, K. K. ., Ravula, S. K., Vuppala, P. K., Sripuram, V. K., & Samala, . S. (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), 2851–2857. https://doi.org/10.37285/ijpsn.2015.8.2.8