M. . Garaigordobil and J. I. . Pérez, “Self-Concept, Self-Esteem and Psychopathological Symptoms in Persons with Intellectual Disability”, Span. j. psychol., vol. 10, no. 1, pp. 141–150, May 2007, Accessed: Dec. 06, 2025. Available: https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0707120141A