UJI KELAYAKAN E-MODUL FISIKA BERBASIS MITIGASI BENCANA GEMPABUMI. koulutus [Internet]. 2021 Sep. 17 [cited 2024 Nov. 14];4(2):129-3. Available from: https://ejournal.kahuripan.ac.id/index.php/koulutus/article/view/620