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Yosua Rahanubun, Juleha Pesilette, Hunahani Nahatue, Asrina Banjar, Jenny Koce Matitaputty. MENGUJI RELEVANSI TEORI JEAN PIAGET TERHADAP PERKEMBANGAN BERPIKIR OPERASIONAL KONKRET ANAK SEKOLAH DASAR DI ERA MODERN. JIE [Internet]. 2026 Feb. 19 [cited 2026 Feb. 21];10(1). Available from: https://www.jurnal.stie-aas.ac.id/index.php/jie/article/view/18390