1. Evans V (2013) Key strategy tools. The 80+ tools for every manager to build a winning strategy. Pearson, Edinburgh
2. Irvine S, Kevan J (2017) Book chapter: Competency-based education in higher education. In: Rasmussen K, Northrup P, Colson R (eds) Handbook of research on competency-based education in university settings. IGI Gobal, pp 1–27. https://www.igi-global.com/book/handbook-research-competency-based-education/153856 . Accessed 3 June 2017
3. Jones K, Olswang S (2017) Book chapter: Building competence: a historical perspective of competency-based education. In: Rasmussen K, Northrup P, Colson R (eds) Handbook of research on competency-based education in university settings. IGI Gobal, pp 28–40. https://www.igi-global.com/book/handbook-research-competency-based-education/153856 . Accessed 3 June 2017
4. Kotler P, Armstrong G (2008) Principles of marketing. Pearson Prentice Hall, Upper Saddle River, NJ, pp 540–570
5. Krogerus M, Tschappeler R (2012) The change book. Fifty models to explain how things work. Profile Books, London, pp 82–95