1. Andre, E. K., Williams, N., Schwartz, F., & Bullard, C. (2017). Benefits of campus outdoor recreation programs: A review of the literature. Journal of Outdoor Recreation, Education, and Leadership, 9(1), 15–25.
2. Austin, D. R., & Crawford, M. E. (2015). The history of Therapeutic Recreation: A history of two professions. In D. R. Austin, M. E. Crawford, B. P. McCormick, & M. Van Puymbroeck (Eds.), Recreational therapy, introduction (4th ed.). Urbana, IL: Sagamore-Venture.
3. Baumeister, R. F., & Vohs, K. D. (2002). The pursuit of meaningfulness in life. In C. R. Snyder & S. J. Lopez (Eds.), Handbook of positive psychology (pp. 608–618). Oxford: Oxford University Press.
4. Campbell, J. (1968). The hero with a thousand faces (2nd ed.). Princeton, NJ: Princeton University Press. (Original work published 1949).
5. Carruthers, C., & Hood, C. D. (2007). Building a life of meaning through therapeutic recreation: The leisure and well-being model, part I. Therapeutic Recreation Journal, 41, 276–297.