<https://www.computer1001.com/2015/10/cara-mengganti-angka-ke-nama-hari-di-excel.html#organization>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.computer1001.com/2015/10/cara-mengganti-angka-ke-nama-hari-di-excel.html>