?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Arif&rft.au=Ramadhan%2C+Arif&rft.aulast=Ramadhan&rft.tpages=30&rft.inst=Universitas+Muhammadiyah+Prof.+DR.+HAMKA&rft.date=2020&rft.title=Pengaruh+Promo+Voucher+dan+Service+Quality+terhadap+Keputusan+Pembelian+Produk+pada+E+Commerce+Tokopedia+di+Perumahan+Nusa+Indah+Jakarta+Timur&rft.degree=Bachelor