Pino Artacho, Julio A. del, and Juan Díez Nicolás. “Happiness and Its Components. Exploitation of the World Barometer of Happiness 1999”. Spanish Journal of Sociology, no. 2 (January 1, 2002). Accessed July 18, 2024. https://recyt.fecyt.es/index.php/res/article/view/64860.