3G E-learning <br/><br/>
3G handy guide:   digital marketing/ 
3G E-learning 
 - New York;  3G E-learning LLC  c2019. 
 - x;  252 pages, illustrations (colored) 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781984624239 
<br/><br/><label>Dewey Class. No.: </label>658.872