Savithri T. B., Kavitha Yadav, and Poornima N.B. “Formulation and Evaluation of Sustained Release Matrix Tablets by Using Different Polymers”. International Journal of Management Studies (IJMS), vol. 6, no. Spl Issue 7, June 2019, pp. 120-5, https://researchersworld.com/index.php/ijms/article/view/2173.