Nitiporn Sangngaen และ Tharathon Mongkhonsi. (2005) Preparation of cobalt titanium silicalite 1 catalyst. Chulalongkorn University:ม.ป.ท.Nitiporn Sangngaen และ Tharathon Mongkhonsi. 2005. Preparation of cobalt titanium silicalite 1 catalyst. ม.ป.ท.:Chulalongkorn University;Nitiporn Sangngaen และ Tharathon Mongkhonsi. Preparation of cobalt titanium silicalite 1 catalyst. ม.ป.ท.:Chulalongkorn University, 2005. Print.