Lloret, Susana, Adoración Ferreres, Ana Hernández, and Inés Tomás. “The Exploratory Factor Analysis of Items: Guided Analysis Based on Empirical Data and Software.”. Anales de Psicología / Annals of Psychology 33, no. 2 (March 31, 2017): 417-432. Accessed September 15, 2019. https://revistas.um.es/analesps/article/view/analesps.33.2.270211.