Alaribe, Frank O., and Pariatamby Agamuthu. “Fertigation of Brassica Rapa L. Using Treated Landfill Leachate As a Nutrient Recycling Option”. South African Journal of Science, vol. 112, no. 3/4, Mar. 2016, p. 8, https://doi.org/10.17159/sajs.2016/20150051.