RECYCLING OF COAL ASHES AS ENERGY-SAVING BUILDING MATERIAL. International Engineering Journal For Research & Development, [S. l.], v. 6, n. 3, p. 3, 2021. DOI: 10.17605/OSF.IO/TYFJW. Disponível em: https://www.iejrd.com/index.php/iejrd/article/view/2216. Acesso em: 2 oct. 2026.