1. Anandarajah, G., & Hight, E. (2001). Spirituality and medical practice: Using the HOPE questions as a practical tool for spiritual assessment. American Family Physician, 63(1), 81–89.
2. Chuengsatiansup, K. (2003). Spirituality and health: An initial proposal to incorporate spiritual health in health impact assessment. Environmental Impact Assessment Review, 23, 3–15.
3. Connors, G. J., Tonigan, J. S., & Miller, W. R. (1996). A measure of religious background and behavior for use in behavior change research. Psychology of Addictive Behaviors, 10(2), 90–96.
4. Dombeck, M., & Karl, I. (1987). Spiritual issues in mental health care. Journal of Religion and Health, 26(3), 183–197.
5. Erikson, E. (1951). Childhood and society. New York: W.W. Norton & Company.