SAM, Joel. Compressive Strength of Concrete using Fly Ash and Rice Husk Ash: A Review. Civil Engineering Journal, [S. l.], v. 6, n. 7, p. 1400–1410, 2020. DOI: 10.28991/cej-2020-03091556. Disponível em: https://www.civilejournal.org/index.php/cej/article/view/2210. Acesso em: 20 sep. 2025.