Yaowalak Yim-On. <br/><br/>
Sociolinguistics / 
Yaowalak Yim-On ; English Department, School of Humanities, Bangkok University. 
 - 7th rev. ed. 
 - Pathum Thani :  Bangkok Univ. Press,  2009. 
 - 194 p. :  ill. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9742191204 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociologuistics
<br/><br/><label>LC Class. No.: </label>P40.4.T5  / Y368S 2009