Ymas Jr. Sergio E. <br/><br/>
Advanced engineering math/ 
Sergio E. Ymas, Jr. 
 - Valenzuela City, Metro Manila :  Ymas Publishing House,   c2016. 
 - 302 pages 
<br/><br/><label>ISBN: </label>6858769413619 
<br/><br/><label>Dewey Class. No.: </label>620