Roemintoyo, Roemintoyo, and Mochamad Kamil Budiarto. “Flipbook As Innovation of Digital Learning Media: Preparing Education for Facing and Facilitating 21st Century Learning”. Journal of Education Technology 5, no. 1 (April 8, 2021): 8–13. Accessed November 30, 2024. https://ejournal.undiksha.ac.id/index.php/JET/article/view/32362.