Happiness for Everybody. And no one will go away unsatisfied. project baikal, Irkutsk, Russian Federation, v. 9, n. 32, p. 38–43, 2012. DOI: 10.7480/projectbaikal.32.215. Disponível em: https://projectbaikal.com/index.php/pb/article/view/215. Acesso em: 10 may. 2026.