Li, J. and Luo, Y. 2006, "Notes on Paha Buyang", in Linguistics of the Tibeto-Burman Area, vol. 29, no. 1, pp. 1-40. cite.

DJVU PDF Luo, Y. 2001, "The hypothesis of a new branch of the Tai languages", in Essays in Tai Linguistics, ed. M.R. Kalaya Tingsabadh and A.S. Abramson, pp. 177-188. Chulalongkorn University Press. cite.

DJVU PDF Luo Yongxian. 1997, "Expanding the Proto-Tai Lexicon–a Supplement to Li (1977)", in The Mon-Khmer Studies Journal, vol. 27, pp. 271-298. cite.

DJVU PDF Luo Yongxian. 1996, "Tonal irregularities in Tai revisited", in The Mon-Khmer Studies Journal, vol. 25, pp. 69-102. cite.

DJVU PDF Luo, Y. 1996, "Word families in Tai: a preliminary account", in The Fourth International Symposium on Language and Linguistics, Thailand, pp. 850-882. Institute of Language and Culture for Rural Development, Mahidol University. cite.