DJVU PDF Nagano, Y. 1979, "A historical study of rGyarong initials and prefixes", in Linguistics of the Tibeto-Burman Area, vol. 4, no. 2, pp. 44-68. cite.
DJVU PDF Nagano, Y. 1979, "A historical study of rGyarong rhymes", in Linguistics of the Tibeto-Burman Area, vol. 5, no. 1, pp. 37-47. cite.