Champakaew W, Pencingkarn W. The Effectiveness of Negotiation of Meaning Strategies on Developing Grammar Usage in Two-way Communication Tasks. CJHS [internet]. 2014 Jun. 30 [cited 2025 Apr. 10];3(1):87-114. available from: https://so05.tci-thaijo.org/index.php/MFUconnexion/article/view/241398