College algebra : worktext 
Amacio, Leonor J. 
 - Second edition. 
 -  National Book Store,  2005 
 - vii, 411 p. 
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<br/><br/><label>ISBN: </label>9-71086578-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.
<br/><br/><label>Dewey Class. No.: </label>F 512 A479 2005