?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Indah&rft.au=Indah%2C+Jumei&rft.aufirst=Jumei&rft.degree=Bachelor&rft.date=2021&rft.inst=Universitas+Muhammadiyah+Prof.+DR.+HAMKA&rft.title=PENETAPAN+KADAR+ALKALOID+TOTAL+EKSTRAK+ETANOL+70%25+DAUN+PLETEKAN+(Ruellia+tuberosa+L.)+SECARA+REFLUKS+DAN+UJI+AKTIVITAS+ANTIOKSIDAN+METODE+ABTS+((2%2C2-Azinobis(3-+ethylbenzothiazoline)6-sulfonic+acid)