Suryani O, Sari TK, Riga R, Mawardi M, Yuhelman N, Nasra E, et al. The Chemistry Teacher Activities on The Training of Project Based Learning Teaching Materials Digitalisation. HJKK [Internet]. 2024 Dec. 31 [cited 2025 Aug. 16];12(6):1302-9. Available from: https://e-journal3.undikma.ac.id/index.php/hydrogen/article/view/13495