Ringworld: Perbedaan antara revisi

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* [http://www.alcyone.com/max/reference/scifi/ringworld.html Physical parameters of the Ringworld]
* [http://www.worldswithoutend.com/novel.asp?ID=18 Ringworld] at Worlds Without End
* [http://www.larryniven.net/physics.shtml The Physics of Ringworld] {{Webarchive|url=https://web.archive.org/web/20180418072051/http://www.larryniven.net/physics.shtml |date=2018-04-18 }} (official site)
** [http://www.larryniven.net/physicsinscifi/img7.shtml ''Aspects of Ringworld''] {{Webarchive|url=https://web.archive.org/web/20160124094457/http://larryniven.net/physicsinscifi/img7.shtml |date=2016-01-24 }}
 
[[Kategori:Novel Amerika Serikat tahun 1970]]