 Schaum's Outline of Precalculus by Fred Safier, 01 October, 1997
 Precalculus Study and Solutions Guide by Ron Larson, Dianna Zook, June, 2001
 Precalculus (2nd Edition) by Margaret L. Lial, John Hornsby, et all 08 November, 2000
 Algebra and Trigonometry with Analytic Geometry (with CD) by Earl W. Swokowski, Jeffery A. Cole, 01 December, 2001
 Precalculus: Functions and Graphs by Jeffery A. Cole, Earl William Swokowski, 2002
 Contemporary Precalculus: A Graphing Approach by Thomas W. Hungerford, July, 2003
 Pre Calculus Functions and Graphs: A Graphing Approach by Ron Larson, Robert P. Hostetler, et all August, 2000
 The PreCalculus Problem Solver: A Complete Solution Guide to Any Textbook (Rea's Problem Solvers) by M. Fogiel, Staff of Research and Education Association, et all 1998
 Trigonometry: Revised Third Edition by John B. Baley, Gary Sarell, et all 26 June, 2002
 Mandatory Package College Algebra with Trigonometry with Smart CD (Windows) by Raymond A. Barnett, 06 July, 2000
