PHOPUM, N.; (THINTEAW), P. C.; CHUENBAN, P. A Development of English Communication Skills of the Student in Surin Province by using CLT Theory. Journal of Graduate MCU KhonKaen Campus, [S. l.], v. 6, n. 4, p. 109–122, 2019. Disponível em: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/227615. Acesso em: 10 oct. 2026.