Caluag, Romualdo S. <br/><br/>
A comprehensive approach to differential calculus 
/ by Romualdo S. Caluag ; edited by Yolanda C. Roberto, Evelyn M. Roque 
 - Valenzuela :  Tru-Copy Pub. House,  c1998 
 - 260 p.  ill. 
<br/><br/><label>ISBN: </label>9717730318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus, Differential