SOMWONG, K. A Statistical Evidence on How Happiness Alters in Different Stages of Life According to the Hamburger Model of Happiness. The Eurasia Proceedings of Health, Environment and Life Sciences, [S. l.], v. 1, p. 46–51, 2021. DOI: 10.55549/ephels.8. Disponível em: https://ephels.net/index.php/ephels/article/view/8. Acesso em: 3 may. 2024.