Mariyam S, Hairida, Mayasari E. Development of Supplementary Teaching Materials Based on Local Wisdom of The Sungai Kakap Community on Material Form, Substance, and Its Changes. HJKK [Internet]. 2026 Aug. 31 [cited 2026 Sep. 8];14(4). Available from: https://e-journal.undikma.ac.id/index.php/hydrogen/article/view/21916