Effect of Multimorbidity on Depression of Indonesian Older Persons: An Application of the Utility Function. International Journal of Economics Development Research (IJEDR), [S. l.], v. 7, n. 2, p. 140–155, 2026. DOI: 10.37385/d1hg7t62. Disponível em: https://journal.yrpipku.com/index.php/ijedr/article/view/10759. Acesso em: 25 jun. 2026.