Villano, Ma. Luisa, <br/><br/>
Mathematics :  teaching aids / 
Ma. Luisa Villano 
 - Makati :  Bookmark.  1993. 
 - 83 pages :  graphs, tables ;  27 cm. 
<br/><br/><label>ISBN: </label>9715690955 
<br/><br/><label>Dewey Class. No.: </label>510   / V712m