Choothong, Nuorn, and Sonthaya Pongthanee. “Sound Insolation of Local Economic Materials Prepared by Natural Rubber Latex and Pineapple Leaf Fiber”. Suan Sunandha Science and Technology Journal 10, no. 1 (December 26, 2022): 62–66. Accessed April 19, 2024. https://li02.tci-thaijo.org/index.php/ssstj/article/view/415.