?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Utami&rft.au=Utami%2C+Tya+Palpera&rft.aufirst=Tya+Palpera&rft.date=2019&rft.inst=Universitas+Muhammadiyah+Prof.+DR.+HAMKA&rft.title=UJI+AKTIVITAS+ANTIOKSIDAN+DARI+FRAKSI+AIR+DAUN+TEMBAKAU+(Nicotiana+tabacum+L.)+DENGAN+METODE+DPPH+DAN+FERRI+TIOSIANAT&rft.degree=Bachelor