?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Liliana%2C+Liliana&rft.aulast=Liliana&rft.aufirst=Liliana&rft.title=Hubungan+Cyberbullying+dengan+Kepercayaan+Diri+Siswa&rft.inst=Universitas+Negeri+Padang&rft.date=June+2021&rft.degree=Bachelor%2FSkripsi