Yim, Soobin, Binbin Zheng, and Mark Warschauer. “Feedback and Revision in Cloud-Based Writing: Variations across Feedback Source and Task Type”. Writing and Pedagogy 9, no. 3 (April 25, 2018): 517-553. Accessed October 1, 2020. https://journal.equinoxpub.com/WAP/article/view/7568.