Shalsabila SY, Kusumaningtyas P, Erika F. Chemical Concepts Related to the Context of Palm Oil Production Process for Contextual Chemistry Learning based on Local Natural Resources. HJKK [Internet]. 2024 Aug. 30 [cited 2025 Sep. 30];12(4):697-70. Available from: https://ojspanel.undikma.ac.id/index.php/hydrogen/article/view/11520