Effect of Fibres Length on Acoustic Properties of Betel Nut Husk (Areca Nut Husk) Fibers–Reinforced Epoxy Composites. JTM [Internet]. 2019 Oct. 31 [cited 2026 Mar. 21];9(2):46-51. Available from: https://jtm.itp.ac.id/index.php/jtm/article/view/532