Miguel Helft (July 4, 2009). "We Rent Movies, So Why Not Textbooks?". The New York Times. Retrieved 2010-01-26. ... calculated that his bill for books that semester would have been $334 with Chegg, far less than the $657 he paid...
Eaton, S. E. (2020). Academic Integrity During COVID-19: Reflections from the University of Calgary. International Studies in Educational Administration, 48(1), 80-85. Retrieved from https://prism.ucalgary.ca/handle/1880/112293