A. Keyvanfar and R. Vafaeikhoshkhou, “Error Taxonomy of TOEFL iBT Writing: An Iranian Perspective”, J. Lang. Transl., vol. 5, no. 1, pp. 61–75, Dec. 2015, Accessed: Jun. 09, 2026. [Online]. Available: https://oiccpress.com/ttlt/article/view/15599