Yaowalak Yim-On. <br/><br/>
Sociolinguistics / 
Yaowalak Yim-on ; Bankok University, School of Humanity 
 - 3rd rev. ed. 
 - Bangkok :  Texts and Instructional Materials Department, The Univ.,  2005 
 - 166 p. :  ill. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9742191204 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIOLINGUISTICS
<br/><br/><label>LC Class. No.: </label>P40.4 .T5  / Y368S 2005