Panida Singra และ Pipat Khongpracha. (2011) Structures and mechanisms investigational on etherification of isobutene with ethanol catalyzed by acidic BEA zeolite. Faculty of Science, Kasetsart University,:ม.ป.ท.Panida Singra และ Pipat Khongpracha. 2011. Structures and mechanisms investigational on etherification of isobutene with ethanol catalyzed by acidic BEA zeolite. ม.ป.ท.:Faculty of Science, Kasetsart University,;Panida Singra และ Pipat Khongpracha. Structures and mechanisms investigational on etherification of isobutene with ethanol catalyzed by acidic BEA zeolite. ม.ป.ท.:Faculty of Science, Kasetsart University, 2011. Print.