Shalsabila, S. Y., Kusumaningtyas, P., & Erika, F. (2024). Chemical Concepts Related to the Context of Palm Oil Production Process for Contextual Chemistry Learning based on Local Natural Resources. Hydrogen: Jurnal Kependidikan Kimia, 12(4), 697–707. https://doi.org/10.33394/hjkk.v12i4.11520