Khanita Wanchai และ Aticha Chaisuwan. (2008) Transformation of silica SBA-15 to zeolite beta for craking of plastic waste and plastic-drived crude oil. Chulalongkorn University.:ม.ป.ท.Khanita Wanchai และ Aticha Chaisuwan. 2008. Transformation of silica SBA-15 to zeolite beta for craking of plastic waste and plastic-drived crude oil. ม.ป.ท.:Chulalongkorn University.;Khanita Wanchai และ Aticha Chaisuwan. Transformation of silica SBA-15 to zeolite beta for craking of plastic waste and plastic-drived crude oil. ม.ป.ท.:Chulalongkorn University. 2008. Print.