DJVU PDF Henderson, E.J.A. 1985, "Patterns of baby language in Bwe Karen", in Linguistics of the Tibeto-Burman Area, vol. 8, no. 2, pp. 55-59. 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.