Siti Mastiyah. “Teori Perkembangan Kognitif Pemikiran Jean Piaget”. Tarbiyatul Misbah (Jurnal Kajian Ilmu Pendidikan) 14, no. 1 (June 24, 2021): 62–79. Accessed October 3, 2026. https://www.jurnal.insanprimamu.ac.id/index.php/pai/article/view/117.