Walaiporn Prissanaroon และผู้แต่งคนอื่นๆ. (1998) Preparation and characterization of polypyrrole films for gas sensor application. Chulalongkorn University:ม.ป.ท.Walaiporn Prissanaroon และผู้แต่งคนอื่นๆ. 1998. Preparation and characterization of polypyrrole films for gas sensor application. ม.ป.ท.:Chulalongkorn University;Walaiporn Prissanaroon และผู้แต่งคนอื่นๆ. Preparation and characterization of polypyrrole films for gas sensor application. ม.ป.ท.:Chulalongkorn University, 1998. Print.