Czyż, Anna, and Anna Michalczyk. “Late Diagnosis of Hearing Impairment and the Quality of Communication and Psycho-Social Development of Preschool Patients: A Case Study”. Logopedia Silesiana, no. 7 (December 23, 2018): 164-183. Accessed May 19, 2024. https://journals.us.edu.pl/index.php/LOGOPEDIASILESIANA/article/view/8243.