RAJESH, N.; KULATHU, Y. Surfactant Enhanced Chromium Removal Using a Silica Gel Column. Universitas Scientiarum, [S. l.], v. 6, n. 1, p. 37–40, 2013. Disponível em: https://revistas.javeriana.edu.co/index.php/scientarium/article/view/4830. Acesso em: 28 mar. 2024.