1. Aldenderfer, M. S., & Blashfield, R. D. (1984). Cluster analysis. Sage University Paper Series on Quantitative Applications in Social Sciences, series no. 07–144. Beverly Hills, Sage Publications.
2. Amtmann, L. A. (1996) Stakeholder perspectives on wild and scenic rivers: A new cognitive tool for enhancing participation. Master’s thesis. University of Michigan, School of Natural Resources and Environment.
3. Basu, A. & Kaplan, R. (2015). The reasonable person model: Introducing the framework and the chapters. In R. Kaplan and A. Basu (Eds.), Fostering reasonablenesss: Supportive environments for bringing out our best. Ann Arbor, MI: Michigan Publishing.
4. Brundtland, G.H. (1987). Our Common Future. World Commission on Environment and Development: Brussels, United Nations.
5. Byrch, C., Kearins, K., Milne, M., & Morgan, R. (2007). Sustainable “what”? A cognitive approach to understanding sustainable development. Qualitative Research in Accounting & Management, 4(1), 26–52.