Yaowalak Yim-On. <br/><br/>
Sociolinguistics / 
Yaowalak Yim-on ; English Department, School of Humanities, Bangkok University 
 - 5th rev. ed. 
 - Pathum Thani :  Bangkok Univ. Press,  2007 
 - 189 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 2007