?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ha%2C+Thi+Quyen&rft.aulast=Ha&rft.aufirst=Thi+Quyen&rft.issue=4&rft.volume=9&rft.date=2018&rft.issn=ISSN%3A+2193-6471&rft.atitle=Analysis+of+gene+encoding+haemolysin+A+of+Vibrio+cholerae+isolated+in+Vietnam&rft.title=Journal+Vietnamese+Environment&rft.pages=202-206&rft.genre=article