Cranney, J., Kofod, M., Huon, G., Jensen, L., Levin, K., McAlpine, I., Scoufis, M. and Whitaker, N. (2005). Portfolio tools: learning and teaching strategies to facilitate development of graduate attributes. UniServe Science Blended Learning Symposium Proceedings
Kruger, Evonne J., Holtzman, Diane M. and Dagavarian, Debra A. (2013). Comprehensive Education Portfolio With a Career Focus, The Journal of Continuing Education, 61:1, 46-53
Reese, Michael, and Ron Levy. Accessing the Future: E-Portfolio Trends, Uses, and Options in Higher Education. (Research Bulletin, Issue 4). Boulder, CO: EDUCAUSE Center for Analysis and Research, 2009, available from http://www.educause.edu/ecar.