Hapsauqi, Iqbal, Erda Rahmilaila Desfitri, Farrah Fadhillah Hanum, and Martomo Setyawan. “Development of Aloe Vera-Based Desulfurization Method to Improve The Quality of Sumatra’s Coal”. Sains Natural: Journal of Biology and Chemistry 14, no. 2 (April 30, 2024): 73–80. Accessed May 25, 2026. https://ejournalunb.ac.id/JSN/article/view/699.