“Evaluation and Optimization of Influence of Permeability Property and Concentration of Polymethacrylic Polymers on Microspheres of Metformin HCl”. Dhaka University Journal of Pharmaceutical Sciences 12, no. 2 (January 12, 2014): 131–141. Accessed July 1, 2026. https://www.banglajol.info/index.php/JPharma/article/view/17611.