Swokowski, E. W. (2005). Precalculus functions and graphs. Australia: Thomson.
Trích dẫn kiểu ChicagoSwokowski, Earl W. Precalculus Functions and Graphs. Australia: Thomson, 2005.
Deismireacht MLASwokowski, Earl W. Precalculus Functions and Graphs. Australia: Thomson, 2005.
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