<https://www.contohblog.com/2014/06/mengatasi-error-missing-updated-author.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.contohblog.com/2014/06/mengatasi-error-missing-updated-author.html?showComment=1409547455192>