Ganguli, S., S. Gupta, A. Bhowmik, M. J. Ansari, and M. Basu. “<i>Ricinus communis</I> L. (castor) Effectively Removes Lead from Contaminated Ecosystems”. Indian Science Cruiser, vol. 22, no. 5, Nov. 2008, pp. 38-45, https://informaticsjournals.com/index.php/ISC/article/view/38319.