Sipowicz, Kasper, Marlena Podlecka, and Tadeusz Pietras. “Methods of Communication With Individuals With Autism Spectrum Disorders”. Quarterly Journal Fides et Ratio 38, no. 2 (June 30, 2019): 321-331. Accessed July 1, 2024. https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/76.