Shamsuddin, Md., Parvin Akter, Md. Khan, Jakir Chowdhury, and Md. Reza. “Studies on Bio-Adhesion of Matrix Tablets: I. Release Profile of Theophylline Anhydrous”. Dhaka University Journal of Pharmaceutical Sciences 5, no. 1 (1): 33-37. Accessed September 28, 2020. https://www.banglajol.info/index.php/JPharma/article/view/226.