Edmondson, Jerold A. (2007). "The power of language over the past: Tai settlement and Tai linguistics in southern China and northern Vietnam". In Harris, Jimmy G.; Burusphat, Somsonge; Harris, James E. (eds.). Studies in Southeast Asian Linguistics(PDF). Bangkok, Thailand: Ekphimthai. p. 15. ISBN9789748130064. Archived from the original(PDF) on 16 July 2011.
Edmondson, Jerold A. (2007). "The power of language over the past: Tai settlement and Tai linguistics in southern China and northern Vietnam". In Harris, Jimmy G.; Burusphat, Somsonge; Harris, James E. (eds.). Studies in Southeast Asian Linguistics(PDF). Bangkok, Thailand: Ekphimthai. p. 15. ISBN9789748130064. Archived from the original(PDF) on 16 July 2011.