Siti Nurvitasari, Madlazim, Wasis. Development of OrSAEv Model Learning: Preliminary Study of Students’ Prepareness Facing Volcanic Eruption Disaster. Stud. Learn. Teach. [Internet]. 2021Apr.30 [cited 2026Aug.5];2(1):41-. Available from: https://scie-journal.com/index.php/SiLeT/article/view/58