Thirunavukkarasu1 and S. Ramesh2 TKA. Biosorption of Copper from Aqueous Solutions Using Tridax procumbens. RRST [Internet]. 2010 Jun. 15 [cited 2025 Sep. 21];2(3). Available from: https://updatepublishing.com/journal/index.php/rrst/article/view/386