Soruç, Mustafa, and Şemseddin Gündüz. “Usability Evaluation of E-Textbooks by EFL Teachers”. Shanlax International Journal of Education 9, no. 4 (September 1, 2021): 157-162. Accessed June 14, 2024. https://shanlaxjournals.in/journals/index.php/education/article/view/4094.