Original Laos Sign Language
Classification: Sign Language
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Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·
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Ethnologue: Languages of the World, 17th Edition (2013) . (2013) · edited by Paul M. Lewis; Gary F. Simons; and Charles D. Fennig · Dallas, Texas: SIL International http://www.ethnologue.com Ethnologue: Languages of the World, 17th Edition (2013)
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Glottolog 2.3 . Hammarström, Harald & Forkel, Robert & Haspelmath, Martin & Nordhoff, Sebastian (2014) · http://glottolog.org