Śmiech-Słomkowska, Grażyna, and Małgorzata Peruga. “Importance of Muscles for Structure and Function of Oral Cavity Organs”. In Selected Issues from the Theory and Practice of Speech Therapy, edited by Ewa Gacka and Monika Kaźmierczak, 29–33. Poland: Lodz University Press, 2018. Accessed January 25, 2026. https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1093/chapter/2938.