Panwichian, Saijai, Duangporn Kantachote, Banjong Wittayaweerasak, and Megharaj Mallavarapu. 2010. “Isolation of Purple Nonsulfur Bacteria for the Removal of Heavy Metals and Sodium from Contaminated Shrimp Ponds”. Electronic Journal of Biotechnology 13 (4). Valparaíso, Chile:0-0. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v13n4-8.