<https://indonesiaindonesia.com/threads/prof-dr-h-mohammad-mahfud-mahmodin-s-h-s-u-m-i-p.303362/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://indonesiaindonesia.com/threads/prof-dr-h-mohammad-mahfud-mahmodin-s-h-s-u-m-i-p.303362/>