?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.asej.2020.02.004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=A.H.&rft.au=Jagaba%2C+A.H.&rft.aulast=Jagaba&rft.title=Ain+Shams+Engineering+Journal&rft.issn=20904479&rft.atitle=Water+quality+hazard+assessment+for+hand+dug+wells+in+Rafin+Zurfi%2C+Bauchi+State%2C+Nigeria&rft.volume=11&rft.date=2020&rft.pages=983-999&rft.issue=4&rft.genre=article