Zahlok, M. . and Manal Mahmod (2017) “The Effectiveness of the therapeutic language program in the development of expressive language skill of children with Down syndrome”, Tishreen University Journal- Arts and Humanities Sciences Series, 38(3). Available at: https://journal.tishreen.edu.sy/index.php/humlitr/article/view/2456 (Accessed: 24November2024).