Purposive communication: 

 -  3G E-learning  2018 
 - 184 pages; some colored. illustrations  30 cm.  with DVD 
<br/><br/> Includes bibliography and index with DVD 
<br/><br/><label>ISBN: </label>978-1-68095-905-5 
<br/><br/><label>LC Class. No.: </label>P 90 B985 2018