1. Ahmad, S., Hussain, A., & Azeem, M. (2012). Relationship of academic SE to self-regulated learning, SI, test anxiety and academic achievement. International Journal of Education, 4(1), 12–25.
2. Aleven, V., McLaren, B. M., Roll, I., & Koedinger, K. R. (2006). Toward meta-cognitive tutoring: A model of help-seeking with a cognitive tutor. International Journal of Artificial Intelligence in Education, 16, 101–130.
3. Allen, I. E., & Seaman, J. (2013). Changing course: Ten years of tracking online education in the United States. Sloan Consortium, USA. Retrieved from http://files.eric.ed.gov/fulltext/ED541571.pdf
4. Alshare, K. A., Freeze, R. D., Lane, P. L., & Wen, H. J. (2011). The impacts of system and human factors on online learning systems use and learner satisfaction. Journal of Innovative Education, 9(3), 437–461.
5. Angiello, R. (2010). Study looks at online learning vs. traditional instruction. Education Digest: Essential Readings Condensed For Quick Review, 76(2), 56–59.