Pitiphat, Sumitr. <br/><br/>
Interaction of an Unknown Hill People in Northwestern Thailand With the Ancient Trade Along Silk Road. 

 - Osaka-JA :   National Museum of Ethnology,   1992. 
 - p. 103-116 :   il. 
 - Irregular 
 - No. 32, (1992) 
 - Senri Ethnological Studies ;   no. 32 .
 - Japón.   National Museum of Ethnology. .
<br/><br/> Significance of Silk Roads in the History of human civilizations. 
<br/><br/><br/>Art¡culo en inglés.