1. Peltier, J. W., Schibrowsky, J. A., & Drago, W. (2007). The interdependence of the factors influencing the perceived quality of the online learning experience: A causal model. Journal of Marketing Education, 29(2), 140-153.
2. Pelz, B. (2004). (My) three principles of effective online pedagogy. JALN, 8(3), 33-46.
3. Pett M.A., Lackey N.R. & Sullivan J.J. (2003) Making sense of factor analysis: The use of factor analysis for instrument development in health care research. Sage Publications, Thousand Oaks, CA.
4. Nichols, M. (2003). A theory for e-learning. Educational Technology & Society, 6(2), 1-10, Nichols, A. J., & Levy, Y. (2009).