↑Paul Benedict, Sino-Tibetan: a Conspectus, Cambridge University Press, p. 176. James Matisoff, Handbook of Proto-Tibeto-Burman, University of California Press, 2003, p. 307. Axel Schuessler, ABC Etymological Dictionary of old chinese, University of Hawaii Press, 2006, pp. 461-462. Guillaume Jacques. Esquisse de phonologie et de morphologie historique du Tangoute, Brill, 2014, p. 96. Shuya Zhang, Guillaume Jacques, and Lai Yunfan, A study of cognates between Gyalrong languages and Old Chinese, Journal of Language Relationship, 17, 2019, p. 84.
