KOVTUN, R. A. Psychophysical and Social Development of Persons with Down Syndrome. Psychological Prospects Journal, [S. l.], n. 17, p. 123–131, 2011. Disponível em: https://psychoprospects.vnu.edu.ua/index.php/psychoprospects/article/view/523.. Acesso em: 7 may. 2024.