Alsanosi, Areej, Abeer Alharbi, and Safaa Alhebaishi. “Smart Device Usage Frequency and Usage Level for Learning English”. International Journal of Emerging Technologies in Learning (iJET) 14, no. 19 (October 7, 2019): pp. 49–64. Accessed May 4, 2024. https://online-journals.org/index.php/i-jet/article/view/10003.