PIRES, P. P.; PEIXOTO, J. M.; RIBAS JR., R. de C.; DE SOUZA, M. A. Environmental Values as Mediators of the Influence of Altruism and Frugality over Material Sacrifice. Revista Interamericana de Psicología/Interamerican Journal of Psychology, [S. l.], v. 54, n. 2, p. e1001, 2020. DOI: 10.30849/ripijp.v54i2.1001. Disponível em: http://sip2013.sipsych.org/ojs-/index.php/IJP/article/view/1001. Acesso em: 4 apr. 2026.