3G E-learning LLC, USA <br/><br/>
Information Technology System Administration 
3G E-learning, 
 - New York, United States of Amerca;  3G E-learning LLC  2022 
 - xi,341 pages :  colored illustrations, figures, tables;  25 cm. 
<br/><br/>Includes bibliographyical references  and index. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9781984658548 
<br/><br/><label>Dewey Class. No.: </label>025.04  / In43