Amalia, Nindiana Eva Rosa, and Neni Mariana. “Exploring the Use of Flashcards to Improve Understanding of Flat Shapes in STEAM-Based Mathematics Learning in Elementary Schools”. Jurnal Review Pendidikan Dasar : Jurnal Kajian Pendidikan dan Hasil Penelitian 11, no. 2 (June 30, 2025): 169–183. Accessed August 6, 2026. https://journal.unesa.ac.id/index.php/PD/article/view/45598.