^Edmondson, Jerold A., Solnit, David B. (eds). 1997. Comparative Kadai: the Tai branch. Summer Institute of Linguistics and the University of Texas at Arlington Publications in Linguistics 124. Dallas: Summer Institute of Linguistics and the University of Texas at Arlington.
^Văn Ma, Hoàng. The sound system of the Tày language of Cao Bắng Province, Vietnam. Jerold A. Edmondson and David B. Solnit (eds.), Comparative Kadai: The Tai branch: Dallas: Summer Institute of Linguistics and the University of Texas at Arlington. 1997.