Toepak, Erwin Prasetya, Marvin Horale Pasaribu, Retno Agnestisia, and Gabriela Elsandika. “Degradation of Humic Acids in Peat Water Using Fe3O4 Synthesized from Zircon Sand Tailing As Photo-Fenton Catalyst”. Jurnal Kimia Riset 10, no. 1 (June 30, 2025): 1–16. Accessed July 5, 2025. https://e-journal.unair.ac.id/JKR/article/view/66061.