?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Isti+Andika&rft.aulast=Putri&rft.au=Putri%2C+Isti+Andika&rft.inst=Universitas+Negeri+Padang&rft.degree=Bachelor%2FSkripsi&rft.date=2014&rft.title=Teaching+Writing+a+Report+Text+by+Using+the+Group+Investigation+Strategy+to+Senior+High+School+Students