Sudrajat, Ajat, Fhadya Giaani Salsabila, and Arita Marini. “Digital-Based Flash Card to Increase Social Studies Learning Outcomes for Elementary School Students in The Fourth Grade”. Journal of Education Technology 7, no. 2 (June 26, 2023): 235–246. Accessed May 10, 2024. https://ejournal.undiksha.ac.id/index.php/JET/article/view/63327.