Elias, Nur Amirah, and Siti Amira Othman. “Preparation and Characterization of Oil Palm Tree for Insulation Material”. International Journal of Sustainable Construction Engineering and Technology 13, no. 3 (October 20, 2022): 195–201. Accessed July 23, 2024. https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/11234.