Oliveira, Luísa Helena dos Santos, et al. “Phytoremediation Using Different Concentrations of Lead Acetate Pb(ch3coo)2.3h2o by Canavalia Ensiformis (jack Beans)”. Revista Hipótese, vol. 3, no. 4, Jan. 2017, pp. 171-9, https://revistahipotese.editoraiberoamericana.com/revista/article/view/282.