?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Thahirah%2C+Rana&rft.aufirst=Rana&rft.aulast=Thahirah&rft.date=2020&rft.degree=Bachelor&rft.inst=Universitas+Muhammadiyah+Prof.+DR.+Hamka&rft.title=Perbedaan+Perilaku+Asertif+Siswa+Laki-Laki+dan+Perempuan+Kelas+VIII+SMPN+209+Jakarta