Islam, Md., and Reza-ul Jalil. “Effects of Release Modifier and Annealing on Polyvinyl Acetate-Polyvinyl Pyrrolidone Microspheres Containing Diclofenac Sodium”. Dhaka University Journal of Pharmaceutical Sciences 12, no. 1 (September 2, 2013): 41-50. Accessed September 23, 2019. https://www.banglajol.info/index.php/JPharma/article/view/16299.