Villano, Ma. Luisa V.  <br/><br/>
Math for the 21st century learners 7 / 
Ma. Luisa V. Villano [and three others] 
 - Quezon City, Philippines :   Phoenix Publishing House,   c2012 
 - vii, 479 pages ;   illustrations ;   26 cm. 
<br/><br/><label>ISBN: </label>9789710632169 
<br/><br/><label>Dewey Class. No.: </label>Fil. 510 M426 2012