WANG, Yier. Analysis of the Comprehensive Economic Strength of Cities in Sichuan Province Based on Principal Component Analysis. Frontiers in Business, Economics and Management, [S. l.], v. 21, n. 2, p. 127–131, 2025. DOI: 10.54097/r05xhp33. Disponível em: https://drpress.org/ojs/index.php/fbem/article/view/32356. Acesso em: 3 sep. 2026.