?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Djoko&rft.aulast=Yuwono&rft.au=Yuwono%2C+Djoko&rft.title=Buletin+Penelitian+Kesehatan&rft.volume=36&rft.issue=2&rft.atitle=EPIDEMIOLOGICAL+STUDY+OF+INFLUENZA+IN+JAKARTA+AND+SURROUNDING+AREAS&rft.issn=0125-9695&rft.date=2009&rft.genre=article