Salvador, Maita Songco <br/><br/>
When zero left number land / 
Maita Songco Salvador. 
 - Quezon City :  Adarna House,  2013. 
 - [unpaged] :  col. ill.;  23 cm. 
<br/><br/><label>ISBN: </label>978-9715 - 084512 
<br/><br/><label>Dewey Class. No.: </label>Fic Sa383w 2013