Ong, Violeta V. <br/><br/>
Working with numbers: 
Violeta V. Ong/Celerina P. Ocampo 
 - San Mateo, Rizal  Immanuel Book Publishing   1994 
 - 47pages  ill:  14cm 
<br/><br/><label>ISBN: </label>9718939008 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Working with numbers:
<br/><br/><label>Dewey Class. No.: </label>513  / On3w 1994 Prep.