Utilization of Fly Ash as a Concrete Additive Material in the Construction of Yard Flooring. Journal of Digital Community Services , [S. l.], v. 3, n. 2, p. 24–35, 2026. DOI: 10.69693/dcs.v3i2.50. Disponível em: https://digit.web.id/dcs/article/view/50.. Acesso em: 6 oct. 2026.