SU, Yanli. Resource Estimation of the Goaf Area in Shoushan Mine. International Journal of Natural Resources and Environmental Studies, [S. l.], v. 5, n. 2, p. 95–99, 2025. DOI: 10.62051/ijnres.v5n2.12. Disponível em: https://wepub.org/index.php/IJNRES/article/view/5275. Acesso em: 10 jun. 2026.