CHOOL CHOI, Young. Developing an integrated happiness index and analysis of Korea’s happiness level and policy directions. Data and Metadata, [S. l.], v. 4, p. 853, 2025. DOI: 10.56294/dm2025853. Disponível em: https://dm.ageditor.ar/index.php/dm/article/view/853. Acesso em: 24 aug. 2025.