T. C. R. Bertolini, R. R. Alcântara, J. de C. Izidoro, and D. A. Fungaro, “Adsorption of Acid Orange 8 Dye from Aqueous Solution Onto Unmodified and Modified Zeolites”, Orbital: Electron. J. Chem., vol. 7, no. 4, pp. 358-368, Dec. 2015.