“PERKEMBANGAN KOGNITIF TOKOH ANAK DALAM NOVEL œKADO TERBAIK KAERYA J.S KHAIREN (KAJIAN PSIKOLOGI JEAN PIAGET)”. JURNAL SASTRA INDONESIA (SASINDO) 13, no. 2 (September 21, 2024): 448–460. Accessed March 22, 2026. https://jurnal.unimed.ac.id/2012/index.php/sasindo/article/view/57860.