WASIF JASSIM, Najwa. Influences of Fly-Ash and Eggshell Powder on Some of Engineering Properties of Al-Umara Soil. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 16, n. 2, p. 211–219, 2012. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1211.. Acesso em: 12 jun. 2026.