Kao, Y.H.Y.H.KaoCHEN-WUING LIUJang, C.S.C.S.JangZanh, S.W.S.W.ZanhLin, K.H.K.H.Lin2018-09-102018-09-102011http://www.scopus.com/inward/record.url?eid=2-s2.0-79961207697&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/365588Assessment of nitrogen contamination of groundwater in paddy and upland fieldsjournal article10.1007/s10333-010-0234-2