“High-Porosity Hydrochar From Oil Palm Empty Fruit Bunches Via Single-Step Hydrolytic Agent-Assisted Hydrothermal Carbonization”. Indonesian Journal of Science and Technology 9, no. 3 (July 8, 2025): 709–720. Accessed July 15, 2025. https://ejournal.kjpupi.id/index.php/ijost/article/view/395.