Lewis, M. Paul (ed.), 2009. Ethnologue: Languages of the World, Sixteenth edition. Entry for Northern Thai (页面存档备份,存于互联网档案馆) Dallas, Tex.: SIL International.
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Lewis, M. Paul (ed.), 2009. Ethnologue: Languages of the World, Sixteenth edition. Entry for Northern Thai (页面存档备份,存于互联网档案馆) Dallas, Tex.: SIL International.