Giziewska, Marta. “Alternative and Augmentative Communication in the Speech and Communication Development Process of Children With Autism Spectrum Disorder”. Logopedia Silesiana, no. 9 (December 29, 2020): 1–18. Accessed May 6, 2025. https://trrest.vot.pl/ojsus/index.php/LOGOPEDIASILESIANA/article/view/11438.