?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Dewi&rft.au=Dewi%2C+Citra+Sari&rft.aufirst=Citra+Sari&rft.inst=Universitas+Negeri+padang&rft.date=2011&rft.degree=Bachelor%2FSkripsi&rft.title=Improving+Senior+High+School+Students%E2%80%99+Speaking+Ability+through+Cooperative+Learning+Type+Paired+Storytelling