Nafisah S, Hidayat A, Khaerudini DS. The Effect of Hydrofluoric Acid Treatment on SiO₂ and Al₂O₃ Content in Red Mud to Increase Fe₂O₃ Levels. IJCR [Internet]. 2025 Dec. 30 [cited 2026 Feb. 11];10(2). Available from: https://journal.uii.ac.id/chemical/article/view/42327