Sreedevi , O. ., and D. . Rodric. “Removal of Toxic Cr (VI) from Polluted Water for Low-Cost Activated Carbon Using Vernonia Cinneria”. Journal of Coastal Life Medicine, vol. 11, no. 1, Jan. 2023, pp. 1809 -, https://www.jclmm.com/index.php/journal/article/view/591.