Pham, Thi Duyen Anh, and THI PHUONG THAO NGO. “Utilizing the Jigsaw Technique to Help Students Overcome Common Grammatical Errors in Writing”. VietTESOL International Convention Proceedings 5 (December 29, 2025): 493–511. Accessed January 22, 2026. https://proceedings.viettesol.org.vn/index.php/vic/article/view/230.