 Science of Human History.
- "Lao | About World Languages". aboutworldlanguages.com. Retrieved 2016-05-25.
- Northern Lao is also spoken in large parts of Uttaradit Province and Phitsanulok, which are outside the Isan region.
- Northeastern Lao is sometimes considered a separate language, as it is traditionally spoken by Phuan tribal members, a closely related but distinct Tai group. Also spoken in a few small and scattered Tai Phuan villages in Sukhothai, Uttaradit, and Phrae.
- Southern Loa gives way to Northern Khmer in Si Sa Ket, Surin, and Buriram, and to Khorat Thai and, to some extant, Northern Khmer in Nakhon Ratchasima.
- The Western Lao dialect is not spoken in Laos.
เรืองเดช ปันเขื่อนขัติย์. (2531)
- Blaine Erickson, 2001. "On the Origins of Labialized Consonants in Lao". Analysis based on L. N. Morev, A. A. Moskalyov and Y. Y. Plam, (1979). The Lao Language. Moscow: USSR Academy of Sciences, Institute of Oriental Studies. Accessed 2009-12-19.
- Blaine Erickson, 2001. "On the Origins of Labialized Consonants in Lao". Analysis based on T. Hoshino and R. Marcus (1981). Lao for Beginners: An Introduction to the Spoken and Written Language of Laos. Rutland/Tokyo: Tuttle. Accessed 2009-12-19.
- UCLA International Institute, (n.d.). "Lao". Accessed 2010-07-27.
- Benedict, Paul K. "Languages and literatures of Indochina." The Far Eastern Quarterly (1947): 379-389.
- ANSI Z39.35-1979, System for the Romanization of Lao, Khmer, and Pali; ISBN 0-88738-968-6.
- Hoshino, Tatsuo and Marcus, Russel. (1989). Lao for Beginners: An Introduction to the Spoken and Written Language of Laos. Tuttle Publishing. ISBN 0-8048-1629-8.
- Enfield, N. J. (2007). A Grammar of Lao. Berlin and New York: Mouton de Gruyter. ISBN 3-11-018588-1.
- Cummings, Joe. (2002). Lao Phrasebook: A Language Survival Kit. Lonely Planet. ISBN 1-74059-168-2.
- Mollerup, Asger. Thai–Isan–Lao Phrasebook. White Lotus, Bangkok, 2001. ISBN 974-7534-88-6.
- Kerr, Allen. (1994). Lao–English Dictionary. White Lotus. ISBN 974-8495-69-8.
- Simmala, Buasawan and Benjawan Poomsan Becker (2003), Lao for Beginners. Paiboon Publishing. ISBN 1-887521-28-3
|Lao edition of Wikipedia, the free encyclopedia|
|Wikivoyage has a phrasebook for Lao.|
|Wikimedia Commons has media related to Lao language.|
- Lao Language & Culture Site
- Google Translate
- Omniglot: Lao script
- AbcdLaos Lao Language in Spanish
- USA Foreign Service Institute Lao basic course