Ifeachor, Emmanuel C. <br/><br/>
Digital signal processing :  a practical approach / 

 - 2nd ed. 
 - New Delhi :  Pearson,  c2019. 
 - xxiii, 933 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9788131708248 
<br/><br/><label>LC Class. No.: </label>22971-22975 
<br/><br/><label>Dewey Class. No.: </label>621.3822  / IFE