?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Nurul&rft.au=Nurul+Hidayat%2C+Nurul&rft.aulast=Nurul+Hidayat&rft.atitle=Extraction+and+Antioxidant+Activity+Test+of+Black+Sumatran+Incense&rft.title=Extraction+and+Antioxidant+Activity+Test+of+Black+Sumatran+Incense&rft.genre=article