- Thai language--Orthography and spelling (4)
- Thai language--Grammar (2)
- Thai language--Writing (2)
- Northern Thai language--Alphabet (1)
- Thai language--Alphabet (1)
- Thai language--Homonyms (1)
- Thai language--Pronunciation (1)
- Thai language--Readers (1)
- Thai language--Study and teaching (Elementary)--Thailand--Textbooks (1)
- Thai language--Textbooks for foreign speakers--Japanese (1)
- タイ文字 (1)
- タイ語--文字 (1)
- タイ語--表記法 (1)