DJVU PDF Edmondson, J.A. 1998, "The language corridor: New evidence from Vietnam", in The International Conference on Tai Studies, ed. S. Burusphat, Bangkok, Thailand, pp. 129-150. Institute of Language and Culture for Rural Development, Mahidol University. cite.

DJVU PDF Gregerson, K. and Edmondson, J.A. 1998, "Some puzzles in Cao Lan", in The International Conference on Tai Studies, ed. S. Burusphat, Bangkok, Thailand, pp. 151-164. Institute of Language and Culture for Rural Development, Mahidol University. cite.