Atiulloh, S., Wiryanto, W. and Ekawati , R. . (2025) “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(4), pp. 3621–3630. doi: 10.56916/jirpe.v4i4.2388.