FIRMANSYAH, D. .; WAHDINIWATY, R. Happiness Management: Theoretical, Practical and Impact. International Journal of Business, Law, and Education, [S. l.], v. 4, n. 2, p. 747 - 756, 2023. DOI: 10.56442/ijble.v4i2.244. Disponível em: http://www.ijble.com/index.php/journal/article/view/244. Acesso em: 5 jul. 2025.