Y, Shravan Kumar, Shireesha G, and Harika S. 2019. “Formulation and Evaluation of Metoprolol Tartrate Sustained Release Matrix Tablets”. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN) 12 (5):4865-4671. https://doi.org/10.37285/ijpsn.2019.12.5.7.