1. Office of Industrial Economics, Ministry of Industry, Thailand, 〈www.oie.go.th〉.
2. Office of the Permanent Secretary, Ministry of Commerce, Thailand, International trade statistics, 〈www2.ops3.moc.go.th/〉.
3. Department of Industrial Works, Ministry of Industry, Thailand, Industry information, 〈www.diw.go.th〉.
4. Department of Alternative Energy Development and Efficiency, Ministry of Energy, Thailand, 〈www.dede.go.th〉.
5. Modern Industrial Ceramics;Stafford,1994