Assessment of Fly Ash and Mine Overburden Blends for Underground Backfilling. International Journal of Engineering and Science Research, [S. l.], v. 16, n. 1, p. 104–111, 2026. Disponível em: https://www.ijesr.org/index.php/ijesr/article/view/1476. Acesso em: 11 feb. 2026.