Atiulloh, Siti, Wiryanto Wiryanto, and Rooselyna Ekawati. “The Bangun Tidur Board (Sleeping Shapes Board): An Alternative Learning Media for Solving GCF and LCM Story Problems in Elementary Schools”. Journal of Innovation and Research in Primary Education 4, no. 4 (October 31, 2025): 3621–3630. Accessed January 21, 2026. https://ejournal.papanda.org/index.php/jirpe/article/view/2388.