Arend, H. (1958). The human condition. Chicago: Chicago University Press
Christiansen, C. & Townsend, E. (2004). Introduction to Occupation: The Art and Science of Living. New Jersey: Pearson Education Inc.
Creek, J., & Lawson-Porter, A. (Eds.). (2007). Contemporary Issues in Occupational Therapy. Chichester. John Wiley & Sons Ltd.
Health and Physical Education Online. (2010). Health and Physical Education in the New Zealand Curriculum. Retrieved from http://gifted.tki.org.nz/r/health/curriculum/statement/page31 on the 08/09/2011.
Landers, D. (2000). The Influence of Exercise on Mental Health. Retrieved from http://www.fitness.gov/mentalhealth.html on the 09/09/2011.
Pheasant (1986), Bodyspace: Anthropometry, Ergonomics and Design.