GUO, Shihao. Research on the Changes, Impacts and Countermeasure Suggestions of Gansu Province’s Population Age Structure. Frontiers in Economics and Management, [S. l.], v. 7, n. 2, p. 9–15, 2026. DOI: 10.6981/FEM.202602_7(2).0002. Disponível em: https://fieam.org/index.php/ojs/article/view/189. Acesso em: 31 jul. 2026.