The DEMO version only includes 4 pages:
http://stisitelkom.ac.id
http://stisitelkom.ac.id/login/index.html
http://stisitelkom.ac.id/user/profile_id-2.html
http://stisitelkom.ac.id/user/view_id-2-course-1.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page