SWEETLIN RAJULA RUBAVATHI, D., S. THEODORE DAVID, and S. BALAKUMAR. 2010. “Removal of Rhodamine-B from Aqueous Solution by Adsorption Using Water Hyacinth Ash”. Asian Journal of Chemistry 22 (6):4304-10. https://asianpubs.org/index.php/ajchem/article/view/16804.