?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Pham%2C+Thi+Minh+Hanh&rft.aulast=Pham&rft.aufirst=Thi+Minh+Hanh&rft.issue=4&rft.volume=137&rft.date=2011&rft.atitle=Development+of+Water+Quality+Indices+to+Identify+Pollutants+in+Vietnam's+Surface+Water&rft.title=Journal+of+Environmental+Engineering+(SCI)&rft.pages=273-283&rft.genre=article