3G E-learning <br/><br/>
Entrepreneur's guide:  smartphone repair/ 
3G E-learning 
 - New York;  3g E-learning LLC,  c2021. 
 - vii;  198 pages, illustrations (colored) 
<br/><br/> Includes bibliographic references and index. 
<br/><br/><label>ISBN: </label>9781984646262 
<br/><br/><label>Dewey Class. No.: </label>658