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DJVU Luce, G.H. undated, "Comparative lexicon: OldMon - Palaung - OldKhmer - Bahnar - Stieng - Khasi - Nicobar - Sakai - Khamuk - Lemet - Khmus - So - Boloven - Nyaheun - Huei - Suk - ProuBrao - Ka - Wa/Lawa", in Luce Collection, MS 6574-7, pp. 032a-b. National Library of Australia. cite.

DJVU Luce, G.H. undated, "Comparative lexicon: Munda - Khasi - Riang - Lawa - Mon - Khmer - Sakai - Nicobarese - AnnamChain(Boloven/Khamus/Stieng/Lemet)", in Luce Collection, MS 6574-7, pp. 034a-b, 045a-046b. National Library of Australia. cite.

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DJVU Luce, G.H. undated, "Comparative lexicon: Mon - Khmer - Bahnar - Stieng - Palaung - Riang - Lawa - Khasi - Munda - Sakai - Nicobarese", in Luce Collection, MS 6574-7, pp. 054a-b. National Library of Australia. cite.

DJVU Luce, G.H. undated, "Comparative lexicon: Kurku - Khasi - Palaung - Riang - Lawa - OldMon - OldKhmer - Khamuk - Bahnar - Sakai - Nicobarese - Malay", in Luce Collection, MS 6574-7, pp. 056a-b. National Library of Australia. cite.

DJVU Luce, G.H. undated, "Comparative lexicon: Munda - Khasi - Palaung - Riang - Lawa - Mon - Khmer - Sakai - Nicobarese - AnnamChain(Boloven/Khamus/Stieng/Lemet)", in Luce Collection, MS 6574-7, pp. 074a-b. National Library of Australia. cite.

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DJVU PDF Niramon Suwangard. 2010, "Metaphors in the Lavɨəʔ Ləsɔm ˀlɛ poetry", in The Mon-Khmer Studies Journal, vol. 39, pp. 75-88. cite.

DJVU PDF Suriya Ratanakul. 1996, "Lawa Ləsɔm ˀLɛ Poetry Revisited", in The Mon-Khmer Studies Journal, vol. 26, pp. 387-410. cite.

DJVU PDF Suriya Ratanakul and Ratanahongse, L.D. 1985, "The phonology of Lawa", in Southeast Asian Linguistic Studies Presented to André-G. Haudricourt, ed. S. Ratanakul et al., pp. 264-309. Institute of Language and Culture for Rural Development, Mahidol University. cite.