AHSAN, J. F.; AVITA, D.; SUMAJI. Utilization of Smart Cards in Integer Operations Material to Improve Junior High School Students’ Understanding. International Journal of Elementary Education, [S. l.], v. 8, n. 1, p. 80–88, 2024. DOI: 10.23887/ijee.v8i1.74401. Disponível em: https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/74401. Acesso em: 30 jun. 2024.