Charmondusit, Kitikorn, and Panuwat Prasertpong. “Impact modification of styrene-methyl methacrylate copolymer cast sheet by using natural rubber”. Environment and Natural Resources Journal 6, no. 1 (April 20, 2017): 101–113. accessed September 18, 2026. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/83855.