Thai word list 1 from Thai National Corpus (a project from Faculty of Arts, Chulalongkorn University), provided by mmmmmob
Source: https://github.com/sspanak/tt9/issues/628
Source: https://github.com/sspanak/tt9/pull/629

Thai wordlist 2 by: nv23
Version: 75c1aac522b1ad2c73bd990c891e9d1418df3f3e (2015-07-04)
Source: https://github.com/nv23/thai-wordlist
License: (MIT) https://github.com/nv23/thai-wordlist/blob/master/LICENSE

Thai word frequencies obtained from: AnySoftKeyboard project
Version: 5f50aadb034deb39aed629534b55bdf50cb89d60 (2020-07-07)
Source: https://github.com/AnySoftKeyboard/AnySoftKeyboard
License: (Apache 2.0) https://github.com/AnySoftKeyboard/AnySoftKeyboard/blob/main/LICENSE