↑Paul Benedict, Sino-Tibetan: a Conspectus, Cambridge University Press, p. 184. Weldon South Coblin, A Sinologists Handlist of Sino-Tibetan Lexical Comparisons, Steyler Verlag, 1986, p. 93. James Matisoff, Handbook of Proto-Tibeto-Burman, University of California Press, 2003, pp. 311, 532. Axel Schuessler, ABC Etymological Dictionary of old chinese, University of Hawaii Press, 2006, p. 538.