?url_ver=Z39.88-2004&rft_id=doi%3A10.1016%2Fj.scitotenv.2020.139231&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=D&rft.au=Gashu%2C+D&rft.aulast=Gashu&rft.atitle=Spatial+prediction+of+the+concentration+of+selenium+(Se)+in+grain+across+part+of+Amhara+Region%2C+Ethiopia&rft.title=Science+of+The+Total+Environment+(TSI)&rft.issn=0048-9697&rft.date=May+2020&rft.volume=733&rft.pages=1-16&rft.genre=article