<https://techno.okezone.com/read/2019/03/18/207/2031528/2031528>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://techno.okezone.com/read/2019/03/18/207/2031528/lemahnya-keamanan-bikin-hacker-retas-bukalapak>