Nanney, J. Louis
Algebra and trigonometry: a skills approach
Allyn and Bacon, 1980
 Buku Teks SO
Dwyer, David
College algebra and trigonometry : a contemporary approach
Brooks/Cole, 2000
 Buku Teks SO
Cohen, David
Precalculus : a problems-oriented approach : interactive video skillbuilder CD
Thomson, 2006
 Multimedia
Swokowski, Earl W.
Precalculus : functions and graphs
Brooks/Cole, 2012
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Larson, Ron, 1941-
Algebra and trigonometry real mathematics real people
Brooks/Cole Cengage Learning, 2012
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