Nguyen, Thi Diem Thi, and Pham Hoai Huong Le. “Activity Theory in Education Research on the Use of Digital Tools in Language Teaching and Learning”. Forum for Linguistic Studies 7, no. 10 (October 20, 2025): 1372–1395. Accessed November 3, 2025. https://journals.bilpubgroup.com/index.php/fls/article/view/11266.