Istana B, Hasan I, Winangun K. Influence of fiber content and applied load on the wear mechanisms of oil palm frond fiber/phenol-formaldehyde composites with functional fillers. jerel [Internet]. 2025Nov.6 [cited 2026Apr.18];4(3):136-45. Available from: https://jerel.rlsociety.org/index.php/jerel/article/view/198