Caral – razlika između verzija

* [http://agutie.homestead.com/files/Quipu_B.htm#caral ''Caral: Ancient Peru city reveals 5,000-year-old 'writing''] — [[South African Broadcasting Corporation|SABC]].

 

{{Commonscat|Caral-Supe}}

* [http://archaeology.about.com/od/ancientwriting/a/caralquipu.htm the Caral quipu]