Masum, M., M. A. R. Ripon, D. R. Bhowmik, M. T. Amin, S. Arefin, and M. S. Hossain. “Formulation, Development and Evaluation of Bisoprolol Sustained Release Tablets”. Journal of Scientific Research, vol. 13, no. 1, Jan. 2021, pp. 209-1, doi:10.3329/jsr.v13i1.47324.