?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Syukra&rft.au=Syukra%2C+Alfi&rft.aufirst=Alfi&rft.inst=Universitas+Negeri+padang&rft.date=March+2020&rft.degree=Diploma%2FTugas+Akhir&rft.title=Tinjauan+Kualitas+Pelayanan+Customer+Service+pada+GRAPARI+Telkomsel+Cabang+Lubuk+Alung