WANG, Tian. Application of Raman Spectroscopy in the Characterization of Coal Macromolecular Structure. International Journal of Natural Resources and Environmental Studies, [S. l.], v. 5, n. 3, p. 23–30, 2025. DOI: 10.62051/ijnres.v5n3.04. Disponível em: https://wepub.org/index.php/IJNRES/article/view/5331. Acesso em: 14 may. 2026.