Akhtar, Ahsan <br/><br/>
Textbook of differential calculus / 
Ahsan Akhtar and Sabiha Ahsan 
 - 2nd ed. 
 - New Delhi :  PHI Learning,  2009 
 - xviii, 451 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9788120338531  RM60.70 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential calculus--Textbooks