1. Covid-19 pandemic and online learning: the challenges and opportunities
2. Allen, I. E., & Seaman, J. (2008). Staying the course: Online education in the United States. The Online Learning Consortium. Retrieved from http://www.sloanc.org/publications/survey/pdf/staying_the_course.pdf
3. AllenI. E.SeamanJ. (2015). Grade level: Tracking online education in the United States. Babson Survey Research Group and Quahog Research Group. Retrieved from http://www.onlinelearningsurvey.com/reports/gradelevel.pdf
4. AllenI. E.SeamanJ. (2016). Online report card: Tracking online education in the United States. Babson Survey Research Group and Quahog Research Group. Retrieved from http://www.onlinelearningsurvey.com/highered.html
5. Allen, I. E., Seaman, J., Lederman, D., & Jaschik, S. (2012). Conflicted: Faculty and online education. Inside Higher Ed: Babson Survey Research Group. Retrieved from https://files.eric.ed.gov/fulltext/ED535214.pdf