<https://www.hanalfa.com/2020/07/cara-menampilkan-file-presentasi-power-point-ppt-di-google-meets.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.hanalfa.com/2020/07/cara-menampilkan-file-presentasi-power-point-ppt-di-google-meets.html>