?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Hidayat&rft.au=Hidayat%2C+Vina+Yulia&rft.aufirst=Vina+Yulia&rft.degree=Bachelor&rft.date=2020&rft.inst=Universitas+Muhammadiyah+Prof.+DR.+HAMKA&rft.title=FORMULASI+DAN+UJI+FAKTOR+PELINDUNG+SURYA+SEDIAAN+KRIM+EKSTRAK+ETANOL+70%25+DAUN+KOPI+ARABIKA+(Coffea+arabica+L.)