Supattarachai Saksakulkrai และ Sathon Vijarnwannaluk. (2013) SEASONAL VARIATION OF TROPOSPHERIC OZONE DURING 2007 – 2009 AT “THE OBSERVATORY FOR ATMOSPHERIC RESEARCH AT PHIMAI”, CHANGWAT NAKHONRATCHASIMA. Chulalongkorn University:ม.ป.ท.Supattarachai Saksakulkrai และ Sathon Vijarnwannaluk. 2013. SEASONAL VARIATION OF TROPOSPHERIC OZONE DURING 2007 – 2009 AT “THE OBSERVATORY FOR ATMOSPHERIC RESEARCH AT PHIMAI”, CHANGWAT NAKHONRATCHASIMA. ม.ป.ท.:Chulalongkorn University;Supattarachai Saksakulkrai และ Sathon Vijarnwannaluk. SEASONAL VARIATION OF TROPOSPHERIC OZONE DURING 2007 – 2009 AT “THE OBSERVATORY FOR ATMOSPHERIC RESEARCH AT PHIMAI”, CHANGWAT NAKHONRATCHASIMA. ม.ป.ท.:Chulalongkorn University, 2013. Print.