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Phetrak, A.; Sangkarak, S.; Ampawong, S.; Ittisupornrat, S.; Phihusut, D. Kinetic Adsorption of Hazardous Methylene Blue from Aqueous Solution onto Iron-Impregnated Powdered Activated Carbon: DOI: 10.32526/Ennrj.17.4.2019.33. Environ. Nat. Resour. J. 2019, 17, 78-86.