DJVU PDF Lee, E.W. 1998, "The contibution of Cat Gia Roglai to Chamic", in Papers in Southeast Asian Linguistics No. 15: Further Chamic Studies, ed. D. Thomas, vol. 15, pp. 31-54. Pacific Linguistics, the Australian National University. cite.

DJVU PDF Lee, E.W. 1977, "Devoicing, Aspiration, and Vowel Split in Haroi: Evidence for Register (Constrastive Tongue-Root Position)", in Papers in Southeast Asian Linguistics No.4, Chamic Studies, ed. D. Thomas et al., vol. 4, pp. 87-104. Pacific Linguistics, the Australian National University. cite.