M. Garaigordobil y J. I. Pérez, «Self-Concept, Self-Esteem and Psychopathological Symptoms in Persons with Intellectual Disability», Span. j. psychol., vol. 10, n.º 1, pp. 141–150, may 2007, Accedido: jul. 25, 2026. Disponible en: https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0707120141A