↑Paul Benedict, Sino-Tibetan: a Conspectus, Cambridge University Press, p. 64. James Matisoff, Handbook of Proto-Tibeto-Burman, University of California Press, 2003, pp. 208, 217.
↑Weldon South Coblin, A Sinologists Handlist of Sino-Tibetan Lexical Comparisons, Steyler Verlag, 1986, pp. 22, 31, 54. Nathan W. Hill, The Historical Phonology of Tibetan, Burmese, and Chinese, Cambridge University Press, 2019, pp. 40, 202, 246.
↑Weldon South Coblin, A Sinologists Handlist of Sino-Tibetan Lexical Comparisons, Steyler Verlag, 1986, p. 87.