Essence and essentials of purposive communication in the 21st century / 

, 
 - Mandaluyong City, Philippines :  Books At Iba Publishing,  2018. 
 - 344 pages; 
<br/><br/><label>ISBN: </label>9786214091171 
<br/><br/><label>Dewey Class. No.: </label>FIL.428.202465 D23