DJVU PDF Hope, E.R. 1973, "Selected Phonological Rules for Thailand Lisu", in Papers in Southeast Asian Linguistics No.3, ed. S.A. Wurm, vol. 3, pp. 19-34. Pacific Linguistics, the Australian National University. cite.

DJVU PDF Katsura, M. 1973, "Phonemes of the Alu Dialect of Akha", in Papers in Southeast Asian Linguistics No.3, ed. S.A. Wurm, vol. 3, pp. 35-54. Pacific Linguistics, the Australian National University. cite.