Siti Mastiyah. Teori Perkembangan Kognitif Pemikiran Jean Piaget. Tarbiyatul Misbah [Internet]. 2021 Jun. 24 [cited 2026 Oct. 3];14(1):62-79. Available from: https://www.jurnal.insanprimamu.ac.id/index.php/pai/article/view/117