1. Alexander, P. A., Kulikowich, J. M., & Jetton, T. L. (1994). The role of subject-matter knowledge and interest in the processing of linear and nonlinear texts. Review of Educational Research, 64, 201–252.
2. Allen, I. E., & Seaman, J. (2013). Changing course: Ten years of tracking online education in the United States. Babson Survey Research Group and Quahog Research Group, LLC, Oakland, CA. Retrieved from http://www.onlinelearningsurvey.com/reports/changingcourse.pdf .
3. Atwell, N. (1987). In the middle: Writing, reading, and learning with adolescents. Portsmouth, NH: Boynton/Cook.
4. Azevedo, R., Cromley, J., Moos, D., Greene, J., & Winters, F. (2011). Adaptive content and process scaffolding: A key to facilitating students’ self-regulated learning with hypermedia. Psychological Test and Assessment Modeling, 53(1), 106–140.
5. Bandura, A. (1989). Regulation of cognitive processes through perceived self-efficacy. Developmental Psychology, 25, 725–739.