Zhang, Xiaodong. “Revisiting Textbook Adaption Through Open Educational Resources: An Inquiry into Students’ Emotions”. The International Review of Research in Open and Distributed Learning 21, no. 3 (May 28, 2020): 197–210. Accessed April 19, 2024. https://www.irrodl.org/index.php/irrodl/article/view/4775.