Rivas, B. L., J. Sanchez, and B. Butter. “BIOPOLYMERS APPLIED TO REMOVE METAL IONS THROUGH ULTRAFILTRATION. A REVIEW”. Journal of the Chilean Chemical Society, Vol. 65, no. 4, Nov. 2020, pp. 5004-10, https://jcchems.com/index.php/JCCHEMS/article/view/1516.