Krishnaveni, S., and V. Thirumurugan. “A Study on Removal of Heavy Metal Chromium from Aqueous Chromium Solution Using Ipomoea Carnea Root As Biosorbent”. Journal of Drug Delivery and Therapeutics, vol. 9, no. 4-A, Aug. 2019, pp. 409-14, https://doi.org/10.22270/jddt.v9i4-A.3504.