Comparison of cost between materials used as acoustic insulation. Research, Society and Development, [S. l.], v. 8, n. 9, p. e11891265, 2019. DOI: 10.33448/rsd-v8i9.1265. Disponível em: https://rsdjournal.org/rsd/article/view/1265. Acesso em: 5 dec. 2025.