KHOIRIYAH. PICTURE EXCHANGE COMMUNICATION SYSTEM (PECS) SEBUAH STRATEGI PENGOPTIMALAN KEMAMPUAN KOMUNIKASI ANAK AUTIS. Jurnal Buah Hati , [S. l.], v. 7, n. 1, p. 39–51, 2020. DOI: 10.46244/buahhati.v7i1.938. Disponível em: https://ejournal.bbg.ac.id/index.php/buahhati/article/view/938. Acesso em: 5 aug. 2026.