Rujukan Punca kuasa dua untuk nombor 2

Apostol, Tom M. (2000). "Irrationality of The Square Root of Two—A Geometric Proof". The American Mathematical Monthly. 107 (9): 841–842. Unknown parameter |month= ignored (bantuan); Cite has empty unknown parameters: |quotes= dan |coauthors= (bantuan)
Flannery, David (2005). The Square Root of Two. Springer. ISBN 0-387-20220-X. Cite has empty unknown parameter: |coauthors= (bantuan)
Fowler, David (1998). "Square Root Approximations in Old Babylonian Mathematics: YBC 7289 in Context" (PDF). Historia Mathematica. 25 (4): 366–378. Diarkibkan daripada yang asal (PDF) pada 2006-09-03. Unknown parameter |month= ignored (bantuan); Unknown parameter |coauthors= ignored (|author= suggested) (bantuan); Cite has empty unknown parameter: |quotes= (bantuan)
Gourdon, X. & Sebah, P. Pythagoras' Constant: √2. Includes information on how to compute digits of 2 {\displaystyle {\sqrt {2}}} .
Henderson, David W., Square Roots in the Sulbasutra

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