Boksa, Ewa, and Andrzej Kominek. “Echolalia As Communication Behavior”. Logopedia Silesiana 11, no. 1 (June 30, 2022): 1–15. Accessed May 6, 2025. https://trrest.vot.pl/ojsus/index.php/LOGOPEDIASILESIANA/article/view/13356.