Ika Putri, Rini. “Development of an Interactive Flipbook Based E-Module on the Material of Norms in Society for Students of Grade II of Mayjend Elementary School Sutoyo SM Medan 2025/2026 Academic Year”. Journal of Elementary School Education 4, no. 1 (May 6, 2026): 22–35. Accessed October 10, 2026. https://journal.berpusi.co.id/index.php/joese/article/view/1413.