SITTHI, R.; TINGSABADH, K. Lexical and tonal variation in Khorat Thai by age group and ease of communication. Language and Linguistics, [S. l.], v. 26, n. 2, p. 76–92, 2019. Disponível em: https://so04.tci-thaijo.org/index.php/joling/article/view/174573. Acesso em: 16 may. 2024.