SAWAENGMONGKON, C. A Comparison of Standard Thai Achievement of Ethnic Karen First Grade Students in Monolingual Thai, Informal Bilingual Thai-Karen, and Mother Tongue-based Multilingual Education Classrooms. Journal of Education Studies, Chulalongkorn University, Bangkok, Thailand, v. 42, p. 33–47, 2014. Disponível em: https://so02.tci-thaijo.org/index.php/EDUCU/article/view/26458. Acesso em: 1 oct. 2026.