N. A. Tertichna, “Development of Communicative Skills in the Children with Down’s Syndrome within the Inclusive Education in Preschool Institutions”, PPJ, no. 20, pp. 251–260, Apr. 2012, Accessed: Dec. 22, 2024. [Online]. Available: https://psychoprospects.vnu.edu.ua/index.php/psychoprospects/article/view/469