Santos-Díaz, María del Socorro, María del Carmen Barrón-Cruz, and María Catalina Alfaro-De la Torre. 2007. “Induction of in Vitro Roots Cultures of Thypha Latifolia and Scirpus Americanus and Study of Their Capacity to Remove Heavy Metals”. Electronic Journal of Biotechnology 10 (3). Valparaíso, Chile:0-0. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v10n3-9.