<https://www.smartfren.com/en/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebSite>
<https://www.smartfren.com/helpie_faq/apa-saja-yang-bisa-saya-gunakan-dengan-memiliki-smartpoin/>