WANG, Y.; HUA, L.; SUN, Q.- bai. Construction of Index System for Economic Governance Capability of Mining Areas Based on Principal Component Analysis. Journal of Mines, Metals and Fuels, [S. l.], v. 66, n. 9, p. 715–719, 2022. Disponível em: http://informaticsjournals.com/index.php/jmmf/article/view/31788. Acesso em: 9 may. 2024.