DJVU PDF Dai, Q. and Yanmuchu. 1992, "On the status of tones in the Suomo dialect of rGyarong", in Linguistics of the Tibeto-Burman Area, vol. 15, no. 2, pp. 21-31. cite.

DJVU PDF Burling, R. 1992, "Garo as a minimal tone language", in Linguistics of the Tibeto-Burman Area, vol. 15, no. 2, pp. 33-51. cite.