FIRMANSYAH, Z. EFEKTIVITAS METODE PECS (PICTURE EXCHANGE COMMUNICATION SYSTEM) PADA ANAK AUTIS: (Studi Desktiptif Kuantitatif Metode PECS dalam Komunikasi Non Verbal Anak Autis Di UPT PLA Malang). VOXPOP, [S. l.], v. 1, n. 1, p. 38–44, 2025. Disponível em: https://voxpop.upnjatim.ac.id/index.php/voxpop/article/view/24. Acesso em: 7 jul. 2026.