Thirunavukkarasu1 and S. Ramesh2, T. K. A. (2010) “Biosorption of Copper from Aqueous Solutions Using Tridax procumbens”, Recent Research in Science and Technology, 2(3). Available at: https://www.updatepublishing.com/journal/index.php/rrst/article/view/386 (Accessed: 14 October 2025).