Business mathematics made easy / 
Paras-Bernal,  Ophelia 
 - Manila :  Rex Book Store, Inc,  2007. 
 - iii, 201 p. ; 22.4cm. 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>9789712349256 
<br/><br/><label>Dewey Class. No.: </label>Fil 650.1 B517 2007