ATIULLOH, S.; WIRYANTO, W.; EKAWATI , R. . 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, [S. l.], v. 4, n. 4, p. 3621–3630, 2025. DOI: 10.56916/jirpe.v4i4.2388. Disponível em: https://ejournal.papanda.org/index.php/jirpe/article/view/2388. Acesso em: 21 jan. 2026.