DJVU PDF Edmondson, J.A. and Ziwo, L. 1999, "Laghuu or Xá Phó and a new language of the Yi group", in Linguistics of the Tibeto-Burman Area, vol. 22, no. 1, pp. 1-10. cite.

DJVU PDF Makley, C., Dede, K., Kan, H. and Wang, Q. 1999, "The Amdo dialect of Labrang", in Linguistics of the Tibeto-Burman Area, vol. 22, no. 1, pp. 97-127. cite.