M. reza . Afroogh, “Language-switching, Language Proficiency and Task Difficulty: A study on Writing Performance”, IJLLT, vol. 1, no. 1, pp. 60–65, May 2018, Accessed: Sep. 26, 2025. [Online]. Available: https://al-kindipublishers.org/index.php/ijllt/article/view/953