Elementary algebra 
/ Paz D. Depaudhon ... [et al.] 
 - Rev. ed. 
 - Quezon City :  Bookman,  c2011 
 - iii, 356 p. :  ill. 
<br/><br/><label>ISBN: </label>9789717122847 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra--Elementary education