Government policies during the late 1930s and early 1940s resulted in the successful forced assimilation of various ethno-linguistic groups into the country's dominant Central Thai language and culture, leading to the term Thai people to come to refer to the population of Thailand overall. This includes other subgroups of the Tai ethno-linguistic group, such as the Northern Thais and the Isan people, as well as non-Southeast Asian and non-Tai groups, the largest of which is that of the Han Chinese, who form a substantial minority ethnic group in Thailand.
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^Cheesman, P. (1988). Lao textiles: ancient symbols-living art. Bangkok, Thailand: White Lotus Co., Thailand.
^Fox, M. (1997). A history of Laos. Cambridge, U.K.: Cambridge University Press.
^Fox, M. (2008). Historical Dictionary of Laos (3rd ed.). Lanham: Scarecrow Press.
^Goodden, C. (1999). Around Lan-na: a guide to Thailand's northern border region from Chiang Mai to Nan. Halesworth, Suffolk: Jungle Books.
^Gehan Wijeyewardene (1990). Ethnic Groups across National Boundaries in Mainland Southeast Asia. Singapore: Institute of Southeast Asian Studies. p. 48. ISBN978-981-3035-57-7. The word 'Thai' is today generally used for citizens of the Kingdom of Thailand, and more specifically for the 'Siamese'.
^Barbara A. West (2009), Encyclopedia of the Peoples of Asia and Oceania, Facts on File, p. 794, ISBN978-1-4381-1913-7
^Antonio L. Rappa; Lionel Wee (2006), Language Policy and Modernity in Southeast Asia: Malaysia, the Philippines, Singapore, and Thailand, Springer, pp. 114–115