Rahmanisa, A., Dewata, I., Mawardi, & Away, R. D. Y. (2026). Photocatalytic Degradation of Crystal Violet Using CuFe₂O₄ in a Heterogeneous Photo-Fenton System with Ascorbic Acid. Hydrogen: Jurnal Kependidikan Kimia, 14(2), 367–373. https://doi.org/10.33394/hjkk.v14i2.20190