Drooyan, Irving
Introductory algebra : a guided worktext
John Wiley & Sons, 1982
 Buku Referensi
McCully, Roland C.
Skills practice book to accompany introductory algebra 1
Harcourt Brace Jovanovich, 1979
 Buku Teks
Barnett, Raymond A.
College algebra : a graphing approach
McGraw-Hill, 2000
 Buku Teks
Carman, Robert A.
Intermediate algebra: a guided approach
John Wiley & Sons, 1980
 Buku Teks
Toskey, Burnett R.
College algebra : a modern approach
Addison-Wesly, 1962
 Buku Teks