Puente-Díaz, Rogelio, and Judith Cavazos-Arroyo. “Influence of Gratitude and Materialism on Two Different Conceptualizations of Subjective Well-Being”. Universitas Psychologica, vol. 18, no. 3, Oct. 2019, pp. 1-9, https://doi.org/10.11144/Javeriana.upsy18-3.igmt.