Wanlapa Wisittammasri และผู้แต่งคนอื่นๆ. (2016) Identification of nitrate sources using hydrogeochemical and stable isotope in the aquifer, Amphoe Kaeng Khoi, Changwat Saraburi. Chulalongkorn University:ม.ป.ท.Wanlapa Wisittammasri และผู้แต่งคนอื่นๆ. 2016. Identification of nitrate sources using hydrogeochemical and stable isotope in the aquifer, Amphoe Kaeng Khoi, Changwat Saraburi. ม.ป.ท.:Chulalongkorn University;Wanlapa Wisittammasri และผู้แต่งคนอื่นๆ. Identification of nitrate sources using hydrogeochemical and stable isotope in the aquifer, Amphoe Kaeng Khoi, Changwat Saraburi. ม.ป.ท.:Chulalongkorn University, 2016. Print.