Essence and essentials of purposive communication in the 21st century / 
Dapat, Rizal O. ; Chang, Liza L. 
 - Mandaluyong City :  Books Atbp. Publishing Corp.,  2018. 
 - xii, 301 p.: ill. ; 25.3cm. 
<br/><br/>includes references, index 
<br/><br/><label>ISBN: </label>9786214091096 
<br/><br/><label>Dewey Class. No.: </label>Fil 808.51 D212 2018