Sameer Kumar, Neetu Sahay, and Pankaj Kumar Singh. “A Study to Evaluate the Efficacy and Tolerability of Atenolol and Amolodopine With Atenolol in Maintaining Normal Blood Pressure”. International Journal of Health and Clinical Research, vol. 4, no. 14, Aug. 2021, pp. 315-7, https://www.ijhcr.com/index.php/ijhcr/article/view/2351.