PAUL, J. C.; PANIGRAHI, B. Fly ash: An alternative cheap source material for seepage control in soil conservation structure. Journal of Soil and Water Conservation, India, v. 17, n. 2, 2020. Disponível em: https://epubs.icar.org.in/index.php/JSWC/article/view/107950. Acesso em: 3 jul. 2026.