Business mathematics:  A worktext comprehensive approach/ 
by The Committee, Department of Business Mathematics and Statistics 
 - Revised edition  
 - Quezon City :  Rex Printing Company, Inc.  c1997. 
 - ix, 317p.  ill.  25.3cm 
<br/><br/>Chapter 1. The fundamental operations -- 2. Percent -- 3. Percentage -- 4. Simple interest -- 5. Commercial. 
<br/><br/><label>ISBN: </label>971-23-2220-3 
<br/><br/><label>Dewey Class. No.: </label>BFil. 650.01513  / Un3b