Villalobos, Socorro L. <br/><br/>
Mataas na Matematika / 
by Socorro L. Villalobos, Evangeline P. Bautista, Leonila T. Reyes. 
 - 280 p. 
<br/><br/><label>ISBN: </label>971-8781-34-x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical Systems--Philippines--1997--newsprint.