Salas, Saturnino L.
Precalculus
John Wiley & Sons, 1979
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Coburn, John W.
Precalculus
McGraw-Hill, 2010
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Silver, Howard A.
Mathematics: contemporary topics andf applications
Prentice-Hall, 1979
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Huettenmueller, Rhonda
Precalculus demystified
McGraw-Hill, 2012
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Newkome, George R.
Contemporary heterocyclic chemistry: syntheses, reactions, and applications
John Wiley & Sons, 1982
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