DETERMINATION OF TRACE METALS INMAHAWEEL RIVERSEDIMENTS BY ACID EXTRACTION. Al-Nahrain Journal of Science, [S. l.], v. 12, n. 4, p. 7–13, 2018. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/1162.. Acesso em: 22 jul. 2024.