Ilyas, Hamzah Puadi. “Infusing Critical Thinking into English Coursebooks”. Journal of ELT Research: The Academic Journal of Studies in English Language Teaching and Learning 1, no. 1 (May 27, 2016): 113–134. Accessed July 17, 2024. https://journal.uhamka.ac.id/index.php/jer/article/view/39.