MAHMOUD, E. F. E. The Effectiveness of Picture Exchange Communication System in Improving the Functional Communication Skills of Individuals with Autism Spectrum Disorders. Psycho-Educational Research Reviews, [S. l.], v. 4, n. 1, p. 32–38, 2015. Disponível em: https://perrjournal.com/index.php/perrjournal/article/view/337. Acesso em: 3 jul. 2024.