NGUYEN THI , D. A.; NGUYEN THI, C. A. The Effect of Task-Based Learning on Grammar Competence and Student Engagement among Grade 11 Students: A Case Study at Phong Phu High School in Ho Chi Minh City. TTU Journal of Science, [S. l.], v. 1, n. 3, p. 80–87, 2026. DOI: 10.53901/tjs.2026.v01.issue03.art09. Disponível em: https://tjs.ttu.edu.vn/index.php/tjs/article/view/tjs.2026.v01.issue03.art09. Acesso em: 20 oct. 2026.