Rujukan Perenampuluhan

  1. ↑ Bowers, Nancy (1977), "Kapauku numeration: Reckoning, racism, scholarship, dan Melanesian counting systems" (PDF), Journal of the Polynesian Society, 86 (1): 105–116. 
  2. ↑ Lean, Glendon Angove (1992), Counting Systems of Papua New Guinea dan Oceania, Ph.D. thesis, Papua New Guinea University of Technology . See especially chapter 4.
  3. ↑ Wade, Nicholas (1998), A natural history of vision, MIT Press, m/s. 193, ISBN 9780262731294 
  4. ↑ Lewis, Robert E. (1952), Middle English Dictionary, University of Michigan Press, m/s. 231, ISBN 9780472012121 
  5. ↑ Mlodinow, Leonard: "Euclid's Window", page 10. The Free Press, 2001
  6. ↑ Barton, George A. (1908), "On the Babylonian origin of Plato's nuptial nombor", Journal of the American Oriental Society, Journal of the American Oriental Society, Vol. 29, 29: 210–219, doi:10.2307/592627 . McClain, Ernest G.; Plato, (1974), "Musical "Marriages" in Plato's "Republic"", Journal of Music Theory, Journal of Music Theory, Vol. 18, No. 2, 18 (2): 242–272, doi:10.2307/843638 
  7. ↑ Neugebauer, Otto E. (1955), Astronomical Cuneiform Texts, London: Lund Humphries 
  8. ↑ YBC 7289 clay tablet
  9. ↑ Al-Kashi, author: Adolf P. Youschkevitch, chief editor: Boris A. Rosenfeld, p. 256