Teachers commentary pre-calculus mathematics
[by] Merrill E. Shanks [and others]
Addison-Wesley, 1965
 Buku Teks
Purcell, Edwin Joseph, 1901-
Kalkulus dan geometri analitis: jilid 1 = Calculus with analytic geometry
Erlangga, 1999
 Buku Teks
Brumfiel, Charles Francis, 1914-
Introduction to mathematics : with supplementary problems
California State Department of Education , 1965
 Buku Teks
Cox, Arthur F.
Advanced mathematics : a preparation for calculus
Harcourt Brace Javanovich, 1978
 Buku Teks
Stewart, James, 1941-
Precalculus : mathematics for calculus
Brooks, 1998
 Buku Teks SO