Ymas, Sergio E. <br/><br/>
Integral calculus/ 
Ymas, Sergio E., Camelo, Ma. Luisa B.  
 - 2016 revised edition 
 - Valenzuela City;  Ymas Publishing House,   c2016. 
 -  308 pages 
<br/><br/><label>Dewey Class. No.: </label>515.43