Thombre, Nilima, Archana Aher, and Pranali Shimpi. 2020. “Formulation Development and Evaluation of Gum Damar Based Sustained Release Matrix Tablet of Metoprolol Succinate”. Asian Journal of Pharmaceutical Research and Development 8 (3):81-86. https://doi.org/10.22270/ajprd.v8i3.752.