Sumtum  Parisuthiman. <br/><br/>
Business communication :  a functional approach / 
Sumtum  Parisuthiman. 
 - 9th ed. 
 - Bangkok :  Thammasat University,  2013 
 - 312 p. ;  26 cm. 
<br/><br/>Bibliography & index. 
<br/><br/>Letter layout and conventions -- The qualities of business communications -- Personal business letters -- Application letters -- Inquiries and requests -- Orders and acknowledgements of orders -- Complaints and adjustments -- Collection letters -- Memorandums -- Telexes 
<br/><br/><label>ISBN: </label>9786163140418 :  250 baht 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial correspondence<br/>Communication in management
<br/><br/><label>Dewey Class. No.: </label>658.453  / S956B 2013