Extraction of heavy metals from contaminated soils using EDTA and HCl. Journal of Engineering, [S. l.], v. 21, n. 01, p. 45–61, 2015. DOI: 10.31026/j.eng.2015.01.04. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/475.. Acesso em: 17 may. 2024.