REMOVAL OF COPPER IONS FROM WASTE WATER BY ADSORPTION WITH MODIFIED AND UNMODIFIED SUNFLOWER STALKS. Journal of Engineering, [S. l.], v. 16, n. 03, p. 5411–5421, 2010. DOI: 10.31026/j.eng.2010.03.10. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/2649.. Acesso em: 22 jul. 2024.