S. Suresh, R. Wilfred Sugumar, and T. Maiyalagan, “Equilibrium and Kinetic Studies on the Adsorption of Methylene Blue from Aqueous Solution onto Activated Carbon Prepared from Murraya koenigii (Curry Tree) Stems”, ajc, vol. 23, no. 10, pp. 4486–4490, Aug. 2011.