Sound Absorption Characteristics of Polyurethane Composites with Nanocellulose from Oil Palm Empty Fruit Bunches. International Journal of Environmental Sciences, [S. l.], p. 278–286, 2025. DOI: 10.64252/js9nsa36. Disponível em: https://theaspd.com/index.php/ijes/article/view/8578.. Acesso em: 13 nov. 2025.