Kronum: Perbedaan antara revisi

<ref>http://en.wiki-indonesia.club/wiki/Kronum</ref>

<ref>http://www.youtube.co.id/watch?v=c-0o3grcT</ref>

<ref>http://6thfloor.blogs.nytimes.com/2011/04/13/building-sports/</ref>

<ref>http://uk.eurosport.yahoo.com/blogs/world-of-sport/article/44729/</ref>