3G E-Learning. <br/><br/>
Events management services :   advanced in compliance with NC III/ 
3G E-Learning. 
 - USA :  3G E-Learning,  c2019. 
 - vi, 322 p. :  col. ill. 
<br/><br/> Includes index. 
<br/><br/><label>Dewey Class. No.: </label>394.2068 T531 2019  / c.2