1. Adeyemon, E. (2009). Integrating digital literacies into outreach services for underserved youth populations. Reference Librarian, 50(1), 85–98.
2. Ala-Mutka, K. (2011). Mapping digital competence: Towards a conceptual understanding. Luxembourg: Publications Office of the European Union. Retrieved September 30, 2012 from http://ftp.jrc.es/EURdoc/JRC67075_TN.pdf .
3. Ala-Mutka, K., Punie, Y., & Redecker, C. (2008). Digital competence for Lifelong Learning. Luxemburg: Office for Official Publications of the European Communities. Retrieved January 11, 2012 from http://ftp.jrc.es/EURdoc/JRC48708.TN.pdf .
4. Annetta, L., Cheng, M., & Holmes, S. (2010). Assessing twenty-first century skills through a teacher created video game for high school biology students. Research in Science & Technological Education, 8(2), 101–114.
5. Armitage, A., & Keeble-Ramsay, D. (2009). The rapid structured literature review as a research strategy. US-China Education Review, 6(4), 27–38.