Calvete, Esther and Susana Corral. “Machiavellianism: Dimensionality of the Mach IV and its relation to self-monitoring in a Spanish sample”. The Spanish Journal of Psychology, vol. 3, vol. 3, 2000, p. 3, https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0000110003A.