Choothong, N. ., and S. . Pongthanee. “Sound Insolation of Local Economic Materials Prepared by Natural Rubber Latex and Pineapple Leaf Fiber”. Suan Sunandha Science and Technology Journal, vol. 10, no. 1, Dec. 2022, pp. 62-66, doi:10.53848/ssstj.v10i1.415.