Kamińska, Sofia. “Directions of Deformation of the Consonant Cluster St In the Speech of Children With Specific Language Impairment”. Logopedia Silesiana 11, no. 1 (June 15, 2022): 1–37. Accessed April 8, 2025. https://journals.us.edu.pl/index.php/LOGOPEDIASILESIANA/article/view/13355.