BELEN, H.; YILDIRIM, M. Psychometric Analysis of Inflexibility of Happiness in Undergraduate Students: A Reliability and Validity Study. Journal of Positive School Psychology , [S. l.], v. 4, n. 1, p. 69-78, 2020. Disponível em: http://journalppw.com/index.php/JPPW/article/view/211. Acesso em: 7 aug. 2020.