WANG, Y.; WANG, T. Study on Coal Mine Safety Evaluation Based on Factor Analysis. Journal of Mines, Metals and Fuels, [S. l.], v. 66, n. 6, p. 322–327, 2022. Disponível em: http://www.informaticsjournals.com/index.php/jmmf/article/view/31715. Acesso em: 10 may. 2024.