Rizal O.Dapat et. Al. <br/><br/>
Essence and essentials purposive communication in the 21st century 

 -  Books ATBP  publishing  corp. 
 -  c.2 .
<br/><br/><label>ISBN: </label>9786214091096 
<br/><br/><label>Dewey Class. No.: </label>Fil.302.2/D24e/c.2