Revisi per 23 Januari 2014 01.52 sunting Rotlink (bicara \| kontrib) 5.570 suntingan k fixing dead links ← Revisi sebelumnya		Revisi per 22 April 2015 04.28 sunting balikkan Ign christian (bicara \| kontrib) 14.576 suntingan k \|access-date -> \|accessdate Revisi selanjutnya →
Baris 9: \|title=Sputnik: 50 Years Ago \|url=http://www.mentallandscape.com/S_Sputnik.htm \|~~access-date~~accessdate=2007-10-10 }} * {{citation Baris 15: \|title=Sputnik: A History of the Beginning of the Space Age \|url=http://home.earthlink.net/~sovietwebspace/SovietWebSpace/sputnik/sputnik.html \|~~access-date~~accessdate=2007-10-10 \|archiveurl=http://web.archive.org/20071102101356/home.earthlink.net/~sovietwebspace/SovietWebSpace/sputnik/sputnik.html\|archivedate=2007-11-02}} * {{citation Baris 21: \|title=Sputnik \|url=http://www.russianspaceweb.com/sputnik.html \|~~access-date~~accessdate=2007-10-10 }} * [http://www.newsweek.com/id/43257 Timeline of Space Exploration and Sputnik diagram by Newsweek]

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