?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Anifi+Okti&rft.au=Tamara%2C+Anifi+Okti&rft.aulast=Tamara&rft.title=Pengaruh+Relationship+Marketing+terhadap+Customer+Retention+di+Kantor+Pos+DC+Ciputat&rft.degree=Bachelor&rft.inst=Universitas+Muhammadiyah+Prof.+DR.+Hamka&rft.date=2019