?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=-&rft.aulast=Warits+Riyadi&rft.au=Warits+Riyadi%2C+-&rft.degree=S1&rft.title=RANCANG+BANGUN+SISTEM+KEAMANAN+SMART+KEYLESS+BLE%2FNFC+DENGAN+PELACAKAN+GEOLOCATION+DAN+GEOFENCING+BERBASIS+IOT&rft.inst=Universitas+Pendidikan+Indonesia&rft.date=26+August+2025