Biblio
A tentative questionnaire for the words of Bantu languages. Journal of Asian and African Studies. 17:139–212.
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1979. Top Pocket Roget's Thesaurus of English Words and Phrases. Longman Top Pocket Series. :640.
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1989. .
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Thesaurus and Dictionary Series of Khmu dialects in Southeast Asia. Mon-Khmer Studies-Mahidol University Special Publications.
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2002.