Limbong, Tonni, and Zekson Arizona Matondang. “Development of Flat Shape Learning Media to Improve Children’s Mathematical Understanding Using Macromedia Flash”. JUKI : Jurnal Komputer dan Informatika 4, no. 1 (June 2, 2022): 39–50. Accessed May 14, 2026. https://www.ioinformatic.org/index.php/JUKI/article/view/177.