?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Angelica+Biduan+Christin&rft.au=Siburian%2C+Angelica+Biduan+Christin&rft.aulast=Siburian&rft.title=Pengaruh+Media+Sosial+Terhadap+Motivasi+Belajar+Siswa+SMP+Yaspita+Serpong&rft.tpages=138&rft.date=2025&rft.degree=S1&rft.inst=Universitas+Sultan+Ageng+Tirtayasa