Chamaiporn Panleng และ Somchai Puajindanetr. (2017) PURCHASING STRATEGY FOR REFURBISHED GAS CHROMATOGRAPHY INSTRUMENTS. Chulalongkorn University:ม.ป.ท.Chamaiporn Panleng และ Somchai Puajindanetr. 2017. PURCHASING STRATEGY FOR REFURBISHED GAS CHROMATOGRAPHY INSTRUMENTS. ม.ป.ท.:Chulalongkorn University;Chamaiporn Panleng และ Somchai Puajindanetr. PURCHASING STRATEGY FOR REFURBISHED GAS CHROMATOGRAPHY INSTRUMENTS. ม.ป.ท.:Chulalongkorn University, 2017. Print.