FOUAD, E.; AHMAD, F.; ABDELRAHMAN, K. Optimization of Emulsion Liquid Membrane for Lead Separation from Aqueous Solutions. Engineering, Technology & Applied Science Research, Greece, v. 7, n. 5, p. 2068–2072, 2017. DOI: 10.48084/etasr.1390. Disponível em: https://etasr.com/index.php/ETASR/article/view/1390. Acesso em: 17 may. 2022.