NOVITA, Wantri; SAFITRI, Aisyah; DWI SAPUTRA, Agra; LUTFHIA ANANDA, Masykuria; ERSYLIASARI, Aulia; ROSYADA, Amrina. PENERAPAN TEORI PERKEMBANGAN KOGNITIF OLEH JEAN PIAGET TERHADAP KEMAMPUAN MEMECAHKAN MASALAH SISWA SD/MI. HYPOTHESIS : Multidisciplinary Journal Of Social Sciences, [S. l.], v. 2, n. 01, p. 122–134, 2023. DOI: 10.62668/hypothesis.v2i01.662. Disponível em: https://azramedia-indonesia.azramediaindonesia.com/index.php/hypothesis/article/view/662. Acesso em: 6 mar. 2026.