Champakaew, Wilawan, and Wanida Pencingkarn. “The Effectiveness of Negotiation of Meaning Strategies on Developing Grammar Usage in Two-Way Communication Tasks”. Connexion: Journal of Humanities and Social Sciences 3, no. 1 (June 30, 2014): 87–114. Accessed April 20, 2024. https://so05.tci-thaijo.org/index.php/MFUconnexion/article/view/241398.