<https://rhenaldkasali.rumahperubahan.co.id/blog/2013/11/07/turnaround-sindo-7-november-2013/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://rhenaldkasali.rumahperubahan.co.id/blog/2013/11/07/turnaround-sindo-7-november-2013/>