Principles & competencies in purposive communication/ 
Sonia B. Sygaco. 
 - Quezon City:  Great Books Trading,  2018. 
 - 197p. 
<br/><br/><label>ISBN: </label>9789719645542 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>TR 410 Sy31 2018