Bya (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Bya" in English language version.

refsWebsite

Global rank English rank

2books.google.com

3^rd place

3^rd place

books.google.com

Gale, Joseph (2009). Astrobiology of Earth: The Emergence. Oxford: Oxford University Press, p. 21.
Chartrand, Mark (2004). Satellite Communications for the Nonspecialist. New York: SPIE Press, p. 73.