Filivani, Putu Nita, and Anak Agung Gede Agung. “Developing E-Book Contained Character Values in PPKn Lesson Content Grade V Elementary School”. Journal of Education Technology 5, no. 1 (March 23, 2021): 60–69. Accessed May 4, 2024. https://ejournal.undiksha.ac.id/index.php/JET/article/view/32047.