Meningkatkan Kognitif Anak dalam Membedakan Angka 6 dan 9 Melalui  Permainan Clay. Journal of Islamic Early Childhood Education (JOIECE): PIAUD-Ku, [S. l.], v. 3, n. 1, p. 53–61, 2024. DOI: 10.54801/ewemxv52. Disponível em: https://journal.iaipibandung.ac.id/index.php/piaudku/article/view/290.. Acesso em: 18 apr. 2026.