?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Yeni&rft.aulast=Wahyuni&rft.au=Wahyuni%2C+Yeni&rft.inst=Universitas+Negeri+Padang&rft.title=Efektivitas+Pembelajaran+Daring+Mata+Pelajaran+Geografi+Berbasis+Google+Classroom+(Gcr)+di+SMAN+6+Medan&rft.degree=Bachelor%2FSkripsi&rft.date=March+2022