1. Bentler, P. M. (1990). Comparative fit indexes in structural models. Psychological Bulletin, 107(2), 238–246.
2. Bowling, A. (2005). Measuring health: A review of quality of life measurement scales (3rd ed.). New York: Open University Press.
3. Brown, T. A. (2006). Confirmatory factor analysis for applied research. New York: The Guilford Press.
4. Burkhardt, M. A. M. S. N. M. A. (1989). Spirituality: an analysis of the concept. Holistic Nursing Practice, 3(3), 69–77.
5. Celinski, M. J., & Gow, K. M. (Eds.). (2011). Continuity versus creative response to challenge: The primacy of resilience and resourcefulness in life and therapy. New York: Nova Science Publishers.