Orejudo Hernandez, S. ., Frojan Parga, M. X. . y Malo Aznar, C. . (2007): «Illness Behavior: Prediction by Symptoms, the Grossarth-Maticek and Eysenck Personality Types, Neuroticism, Life Events, Coping, Health Locus of Control, Social Support, and Attribution Style », The Spanish Journal of Psychology, 10(2), pp. 388–398. Disponible en: https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0707220388A (Accedido: 6 diciembre 2025).