Quipus and Rememberers

http://www2.sfu.ca/archaeology/museum/laarch/inca/quipue.html

http://www-gap.dcs.st-and.ac.uk/~history/HistTopics/Inca_mathematics.html

http://incas.perucultural.org.pe/english/histec2.htm

http://www.spanish.sbc.edu/MMLatAm/Quipus.html

http://instruct1.cit.cornell.edu/research/quipu-ascher/

http://infodome.sdsu.edu/research/guides/quipu/whatisit.shtml

http://trailingincas.info/writing.php

http://news.nationalgeographic.com/news/2005/08/0811_050811_incaknots.html

http://base.kb.dk/manus_pub/cv/manus/ManusPage.xsql?nnoc=manus_pub&p_ManusId=253&p_PageNo=362&p_Lang=main&p_Mode=img

http://agutie.homestead.com/files/index.html
(Go to the Site map and then ‘Inca Quipu’)