Phairoj Tochaeng และ Bunjerd Jongsomjit. (2016) The ethanol dehydration over alumina-spherical silica particle composite catalyst from modified sol-gel method. Chulalongkorn University:ม.ป.ท.Phairoj Tochaeng และ Bunjerd Jongsomjit. 2016. The ethanol dehydration over alumina-spherical silica particle composite catalyst from modified sol-gel method. ม.ป.ท.:Chulalongkorn University;Phairoj Tochaeng และ Bunjerd Jongsomjit. The ethanol dehydration over alumina-spherical silica particle composite catalyst from modified sol-gel method. ม.ป.ท.:Chulalongkorn University, 2016. Print.