Gayathri R, and Sundaraganapathy R. “Design, Optimization and Comparative IN VITRO Evaluation of Sustain Release Matrix Tablet Using ARAUCARIA HETEROPHYLLA Gum”. International Journal of Research in Pharmaceutical Sciences, vol. 10, no. 3, Aug. 2019, pp. 2109-16, https://ijrps.com/home/article/view/4010.