Ech-Charfi, Ahmed. “Morphological and Semantic Opacity As Factors of Linguistic Change: A Study of Form VIII Verbs in Arabic”. Lingua Posnaniensis 67, no. 2 (January 16, 2026): 23–39. Accessed February 7, 2026. https://pressto.amu.edu.pl/index.php/linpo/article/view/52274.