Borro, Rogelio M. <br/><br/>
MATH / 
Rogelio M. Borro, Lori Marseli L. De Castro. 
 - 233 p. 
<br/><br/><label>ISBN: </label>978-971-821-104-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Valenzuela City, Philippines--2005--newsprint.