3G handy guide  sell tourism products and services 
3G e-learning 
 - New York:  3G E-Learning,  c2019 
 - ix,242 p.:  col.ill.;  23 cm 
<br/><br/><label>ISBN: </label>9781984625571 
<br/><br/><label>Subjects--Topical Terms: </label><br/>study & teaching (higher)<br/>Study and teaching
<br/><br/><label>LC Class. No.: </label>G 155. A1  / H236 2019