RECOVERY OF SODIUM FROM ALUMINA-EXTRACTED FLY ASH USING CONCENTRATED SODIUM CARBONATE SOLUTION. Journal of Mining and Metallurgy, Section B: Metallurgy, [S. l.], v. 54, n. 2, p. 225, 2018. Disponível em: https://test.aseestant.ceon.rs/index.php/jmm/article/view/16791. Acesso em: 11 jun. 2026.