?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Githa+Prima&rft.aulast=Zoni&rft.au=Zoni%2C+Githa+Prima&rft.inst=Universitas+Negeri+Padang&rft.degree=Bachelor%2FSkripsi&rft.date=2012&rft.title=Skype+Call+as+a+Speaking+Activity+Outside+the+Classroom+at+English+Department