LIU, Chang. Research on the correlation between some factors and GDP in different countries. Highlights in Business, Economics and Management, [S. l.], v. 23, p. 1217–1223, 2023. DOI: 10.54097/fbtzpy87. Disponível em: https://drpress.org/ojs/index.php/HBEM/article/view/17357. Acesso em: 5 may. 2026.