Adsorption Study of Lead Ions Pb2+ by using Ion- Exchange Resin and Some Natural Clays. Al-Nahrain Journal of Science, [S. l.], v. 9, n. 1, p. 5–11, 2006. Disponível em: https://mail.anjs.edu.iq/index.php/anjs/article/view/1686. Acesso em: 8 apr. 2025.