1. Agarwal, R., & Karahanna, E. (2000). Time flies when you're having fun: Cognitive absorption and beliefs about information technology usage. MIS Quarterly, 24(4), 665–694. https://doi.org/10.2307/3250951
2. Aleven, V., Stahl, E., Schworm, S., Fischer, F., & Wallace, R. (2003). Help seeking and help design in interactive learning environments. Review of Educational Research, 73(3), 277–320.
3. Arroyo, I., Murray, T., Woolf, B. P., & Beal, C. (2004). Inferring unobservable learning variables from students’ help seeking behavior. In International Conference on Intelligent Tutoring Systems (pp. 782–784). Springer.
4. Behrens, J., Mislevy, R., Dicerbo, K., & Levy, R. (2012). Evidence centered design for learning and assessment in the digital world. In M. Mayrath, J. Clarke-Midura, D. Robinson, & G. Schraw (Eds.), Technology-based assessments for 21st century skills (pp. 13–54). Information Age Publishers.
5. Blagojević, M., & Milosević, M. (2013). Collaboration and learning styles in pure online courses: An action research. Journal of Universal Computer Science, 19(7), 984–1002.