R. Varshi, V. Jain, P. Pal, and N. Gehalot, “Formulation and Evaluation of Extended Release Gastroretentive Tablets of Metroprolol Succinate”, J. Drug Delivery Ther., vol. 12, no. 5-S, pp. 127–132, Oct. 2022, doi: 10.22270/jddt.v12i5-S.5653.