Meningkatkan Kognitif Anak Dalam Membedakan Huruf ‘b’ dan ‘d’ Melalui Bermain Pasir. Journal of Islamic Early Childhood Education (JOIECE): PIAUD-Ku, [S. l.], v. 3, n. 2, p. 111–119, 2024. DOI: 10.54801/5zwyyf87. Disponível em: http://journal.iaipibandung.ac.id/index.php/piaudku/article/view/305.. Acesso em: 29 apr. 2026.