−1 (number) (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "−1 (number)" in Simple English language version.

refsWebsite

Global rank Simple English rank

1books.google.com

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1,142^nd place

books.google.com

Deshpande, J.V. (2004). Mathematical Analysis and Applications: An Introduction. Alpha Science Int'l Ltd. ISBN 978-1-84265-189-6.

mathforum.org

"Math Forum - Ask Dr. Math". mathforum.org.