Silvia, Silvia, Rochmi Widjajanti, and Ida Nur Apriani. “Analisis Sifat Mekanik Dan Sifat Termal Komposit Poliuretan Berpenguat Serat Nanas Dan Cangkang Kemiri”. Jurnal Engine: Energi, Manufaktur, dan Material 6, no. 2 (November 26, 2022): 01–07. Accessed November 5, 2024. https://ejournal.up45.ac.id/index.php/Jurnal_ENGINE/article/view/1038.