Respati, Rida, Salampak Salampak, Fatma Sarie, and Adi Jaya. 2025. “Innovation in Road Construction Materials: A Study on the Combination of Biochar and Cement in Improving Subgrade Bearing Capacity”. JSE Journal of Science and Engineering 4 (1):48-57. https://journals.umkt.ac.id/index.php/jse/article/view/4945.