Ng, L. X., N. S. Suhaimin, and J. Jaafar. “Polyvinyl Alcohol Incorporated With Mesoporous Phosphotungstic Acid for Direct Methanol Fuel Cell Application”. Journal of Applied Membrane Science & Technology 26, no. 1 (February 23, 2022): 1–10. Accessed July 3, 2024. https://amst.utm.my/index.php/amst/article/view/227.