Ongsotto, Rebecca R.; Villasencio, Marissa R.,  c1998. <br/><br/>
Analytical Skill Exercises for Economics / 
Ongsotto, Rebecca R.; Villasencio, Marissa R. 
 - Manila, Philippines :  Rex Bookstore, Inc,  c1998. 
 - 117p. :  illus. ;  25.4 cm. 
<br/><br/><label>ISBN: </label>9712322289