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Al Ayyubi, I.I., Nurhikmah, Noerzanah, F., Prayetno, E. and Asri, M.R. 2025. Math Puzzles and Free Play: Which is More Effective for Children’s Spatial Development?. Indonesian Journal of Early Childhood: Jurnal Dunia Anak Usia Dini. 7, 2 (Jul. 2025), 264–279. DOI:https://doi.org/10.35473/ijec.v7i2.3932.