Principles of Economics (with taxation and agrarian reform) simplified / 
Ramon Benedicto N. Marcelino ...[et al.]. 
 - Mandaluyong City :  National Book Store,  2010. 
 - 238 p. : ill. ; 25 cm 
<br/><br/> Includes glossary and index 
<br/><br/><label>ISBN: </label>9710871021 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Study and teaching