?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Melisa&rft.au=Melisa%2C+Mira&rft.aufirst=Mira&rft.inst=Universitas+Negeri+Padang&rft.date=December+2015&rft.degree=Bachelor%2FTugas+Akhir&rft.title=Rancang+Bangun+Sistem+Penjualan+Online+Berbasis+Web+Pada+PT.+Ultra+Nugraha.