WANKONG, A. The Effectiveness of Communicative Language Teaching Combined with Unscripted Role-Play Activities in Developing Business Speaking Skills among Third-Year Undergraduate Students. Journal of Roi Et Rajabhat University, [S. l.], v. 19, n. 3, p. 72–84, 2025. Disponível em: https://so03.tci-thaijo.org/index.php/reru/article/view/291476. Acesso em: 16 sep. 2026.