Mukundan, Jayakaran, Reza Hajimohammadi, and Vahid Nimehchisalem. “Developing An English Language Textbook Evaluation Checklist”. Contemporary Issues in Education Research (CIER) 4, no. 6 (May 26, 2011): 21-28. Accessed September 7, 2020. https://clutejournals.com/index.php/CIER/article/view/4383.