Kaur, Leela, et al. “Phytoextraction Based on Indian Mustard (Brassica Juncea Arawali) Planted on Spiked Soil by Aliquot Amount of Lead and Nickel”. EQA - International Journal of Environmental Quality, vol. 17, no. 1, Jan. 2015, pp. 13-23, doi:10.6092/issn.2281-4485/5817.