AZMI, Mohd Azham. Rigid Polyurethane Foam Reinforced Coconut Coir Fiber Properties. International Journal of Integrated Engineering, [S. l.], v. 4, n. 1, 2012. Disponível em: https://journal.uthm.edu.my/index.php/ijie/article/view/191. Acesso em: 7 aug. 2026.