8.+References

Textbooks that I have used for my unit:

Blitzer, R. (2010). //Precalculus: Instructor's Eduction 4e.// Saddle River, NJ. Prentice Hall

Gustafson, R. & Frisk, P. (2002). //Intermedia Algebra: 6th Edition.// Thomas Learning

Holt, Rinehart, & Winston. (1997). //Advanced Algebra//. New York. Harcourt Brace & Company