?url_ver=Z39.88-2004&rft_id=10.15244%2Fpjoes%2F60109&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=I.&rft.au=Naubi%2C+I.&rft.aulast=Naubi&rft.volume=25&rft.issn=12301485&rft.issue=1&rft.pages=231-239&rft.atitle=Effectiveness+of+water+quality+index+for+monitoring+Malaysian+river+water+quality&rft.title=Polish+Journal+of+Environmental+Studies&rft.date=2016&rft.genre=article