1. American Association of University Professors (2014). Contingent appointments and the academic profession. Retrieved from h ttps://www.aaup.org/report/contingent-appointments-and-academic-profession . Accessed 7 September 2019
2. Baldwin, R. G., & Chronister, J. (2001). Teaching without tenure: Policies and practices for a new era. Baltimore, MD: Johns Hopkins University Press.
3. Bowen, W. G., & Tobin, E. M. (2015). Locus of authority: The evolution of faculty roles in the governance of higher education. Princeton, NJ: Princeton University.
4. Christensen, C. M., & Horn, M. (2008). Disrupting class: How disruptive innovation will change the way the world learns. New York, NY: McGraw-Hill.
5. Darwin, C. (1859). On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. In Kindle version. London, United Kingdom: John Murray.