Mukhtar RR, Hairida H, Enawati E, Masriani M, Erlina E. Student Worksheet (LKPD) Development Based on Local Wisdom in the Making of Teak Leaf Extract as a Natural Indicator of Acid-Base. HJKK [Internet]. 2024 Aug. 30 [cited 2025 Sep. 30];12(4):905-14. Available from: https://ojspanel.undikma.ac.id/index.php/hydrogen/article/view/12131