Kumar, Anand A. <br/><br/>
Fundamentals of Digital Circuits 
by Anand A. Kumar. 
 - 4th ed. 
 - Delhi  PHI Learning Private limited   2018 
 - 1070 p.  24 cm. 
<br/><br/><label>ISBN: </label>978-8120352681 
<br/><br/><label>Dewey Class. No.: </label>621.3815 KUM