Rusli M, Nanda R, Dahlan H, Bur M, Okuma M. Sound Absorption Characteristics of Composite Panel Made from Coconut Coir and Oil Palm Empty Fruit Bunches Fibre with Polyester. Int. J. Automot. Mech. Eng. [Internet]. 2021 Sep. 21 [cited 2024 Nov. 21];18(3):9022-8. Available from: https://journal.ump.edu.my/ijame/article/view/5987