Boyce, William E. ; DilPrima, Richard C. <br/><br/>
Elementary differential equations and boundary value problems 

 - 9th. ed. 
 - New Delhi  Wiley   2009. 
 - xix; 796 p. 
<br/><br/><label>ISBN: </label>9788126521555 
<br/><br/><label>Source: </label> 779.00 PKR