“UJI KELAYAKAN E-MODUL FISIKA BERBASIS MITIGASI BENCANA GEMPABUMI”. JURNAL KOULUTUS 4, no. 2 (September 17, 2021): 129–139. Accessed July 22, 2025. https://ejournal.ukk.ac.id/index.php/koulutus/article/view/620.