<https://www.omevan.com/2020/03/cara-mengaktifkan-verifikasi-dua-langkah-akun-google.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.omevan.com/2020/03/cara-mengaktifkan-verifikasi-dua-langkah-akun-google.html>