Erwanto, E., Saputra, A. A., & Abimanyu, M. R. (2025). Synthesis and Characterization of Porous Polymer as a Support Matrix for Lipase Immobilization. Hydrogen: Jurnal Kependidikan Kimia, 13(4), 743–751. https://doi.org/10.33394/hjkk.v13i4.16864