Saputra, Yulian Widya, Kurniawan Kurniawan, Fitria Nurul Hidayah, and Mujahadah Mujahadah. “Needs Analysis and Design of Martapura Kingdom Numerical Teaching Materials Based on Android With the Help of I-Spring Suite for Elementary School Students in Samarinda City.”. Educational Studies: Conference Series 3, no. 1 (December 31, 2023): 22-38. Accessed May 20, 2024. https://jurnal.fkip.unmul.ac.id/index.php/escs/article/view/2541.