DJVU PDF Gandour, J. 1979, "Perceptual Dimensions of Tone: Thai", in South-east Asian Linguistic Studies Vol. 3, ed. N.D. Liem, vol. 3, pp. 277-300. Pacific Linguistics, the Australian National University. cite.

DJVU PDF Henderson, E.J.A. 1979, "Bwe Karen as a Two-Tone Language?", in South-east Asian Linguistic Studies Vol. 3, ed. N.D. Liem, vol. 3, pp. 301-326. Pacific Linguistics, the Australian National University. cite.