1. Blumer, H. (1969). Symbolic interaction: Perspective and method. Englewood Cliffs, NJ: Prentice Hall.
2. Charmaz, K. (2014). Constructing grounded theory. Thousand Oaks, CA: Sage.
3. Cresswell, J. (2000). Qualitative inquiry and research design. Thousand Oaks, CA: Sage.
4. Delbecq, A. L. (2016). Integrating spiritual and managerial insights within senior executive teams”. In M. Nennifer, T. Kovac, & G. Miller (Eds.), Spirituality: An interdisciplinary view, Oxford. UK: Interdisciplinary Net Press.
5. Delbecq, A. L., Van de Ven, A. H., & Gustafson, D. H. (1975). Group techniques for program planning: A guide to nominal group and Delphi processes. Glenview, IL: Scott, Foresman and Company.