Withaya Panpa. 2008. Preparation of photocatalytic material from zeolite synthesised by using rice husk silica. Faculty of Science, Chulalongkorn University;
Withaya Panpa. (2008) Preparation of photocatalytic material from zeolite synthesised by using rice husk silica . Chulalongkorn University/Bangkok.
Withaya Panpa. Preparation of photocatalytic material from zeolite synthesised by using rice husk silica. . Bangkok:Chulalongkorn University, 2008.
Withaya Panpa. (2008) Preparation of photocatalytic material from zeolite synthesised by using rice husk silica . Chulalongkorn University/Bangkok.