H. Heidari Tabrizi and M. Jafarie, “Intelligent (Language) Tutoring Systems: A Second-order Meta-analytic Review”, J. Appl. Linguist. Stud., vol. 2, no. 1, pp. 30–42, Jan. 2023, Accessed: May 17, 2026. [Online]. Available: https://oiccpress.com/jals/article/view/5575