College algebra :  text / workbook / 
Salamat, Lorina G. ; Sta. Maria, Antonia C. ; Sevilla, Merlyn R. 
 - 4th ed. 
 - Mandaluyong City :  National Book Store,  2008. 
 - xi, 275 p.;25.4cm. 
<br/><br/><label>ISBN: </label>971086825X 
<br/><br/><label>Dewey Class. No.: </label>Fil 512 S159 2008