 Precalculus: Functions and Graphs by Jeffery A. Cole, Earl William Swokowski, 2002
 Algebra and Trigonometry Structure and Method Book 2 by Richard G. Brown, Mary P. Dolciani, et all January, 1990
 Master Math Trigonometry by Debra Ross, Debra Anne Ross, 15 January, 2002
 Algebra and Trigonometry Problem Solver: A Complete Solution Guide to Any Textbook by James R. Ogden, Rea, et all 1998
 Trigonometry: Revised Third Edition by John B. Baley, Gary Sarell, et all 26 June, 2002
 A Graphical Approach to College Algebra & Trigonometry (3rd Edition) by E. John Hornsby, Margaret L. Lial, et all 12 July, 2002
 Contemporary College Algebra and Trigonometry: A Graphing Approach (with CDROM) by Thomas Hungerford, 25 May, 2001
 Mandatory Package College Algebra with Trigonometry with Smart CD (Windows) by Raymond A. Barnett, 06 July, 2000
 Algebra and Trigonometry: Graphing and Data, and Analysis, Third Edition by Michael Sullivan, Joan M. Saslow, 25 February, 2003
 Trigonometry by Israel M. Gelfand, Mark E. Saul, et all 15 May, 2001
