Swati Mittal, Kawale Sandip, and John Jobin. “Design, Development and Evaluation of Pulsatile Drug Delivery System Using Tablet in Tablet Formulation”. World Journal of Pharmaceutical Sciences, vol. 2, no. 11, Nov. 2014, pp. 1499-05, https://wjpsonline.com/index.php/wjps/article/view/design-evaluation-pulsatile-dds-tablet-formulation.