Revisi per 7 Mei 2016 08.08 sunting AABot (bicara \| kontrib) Bot, Pengecualian blokir IP 869.459 suntingan k Robot: Perubahan kosmetika ← Revisi sebelumnya		Revisi per 26 Januari 2017 08.25 sunting balikkan HsfBot (bicara \| kontrib) Bot 1.172.010 suntingan k Bot: Perubahan kosmetika Revisi selanjutnya →
Baris 13: * [http://www.wired.com/wired/archive/15.01/khipu.html Untangling the Mystery of the Inca] * [http://links.jstor.org/sici?sici=0014-1801%28199822%2945%3A3%3C409%3AFKTNRT%3E2.0.CO%3B2-M From Knots to Narratives] * [http://www.sciencemag.org/cgi/content/full/310/5756/1903d Science: Inka Accounting Practices] * [http://pop-khipu-project.blogspot.com/ Open / Popular (Ad Hoc) Khipu Decipherment Project] * [http://www.plainmath.net/index.php?page=counting History of Counting-PlainMath.Net]

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