Sarkar, Kowshik, Sams Mohammad Anowar Sadat, Md Saiful Islam, and Reza-ul Jalil. 2012. “Study of Ethyl Cellulose Based Sustained Release Microspheres of Naproxen Sodium”. Dhaka University Journal of Pharmaceutical Sciences 10 (2):123-29. https://doi.org/10.3329/dujps.v10i2.11792.