Sidauruk, Tumiar, Fitra Delita, Nurmala Berutu, Eni Yuniastuti, and Elfayetti Elfayetti. “The Impact of E-Modules on Students’ Critical Thinking Skills”. Sumatra Journal of Disaster, Geography and Geography Education 8, no. 2 (December 30, 2024): 26–30. Accessed November 8, 2026. http://sjdgge.ppj.unp.ac.id/index.php/Sjdgge/article/view/625.