ZHAO, Yupeng. The Impact of Population Ageing on the Economy. International Journal of Social Sciences and Public Administration, U.K., v. 2, n. 2, p. 108–121, 2024. DOI: 10.62051/ijsspa.v2n2.18. Disponível em: https://metadata.wepub.org/index.php/IJSSPA/article/view/727. Acesso em: 12 jun. 2026.