Prapavessis, H., Maddison, R., & Brading, F. (2004). Understanding exercise behavior among New Zealand adolescents: A test of the Transtheoretical Model. Journal of AdolescentHealth, 35, 346.e17-27
2.
Prochaska, J.O. (1996). A stage paradigm for integrating clinical and public health approaches to smoking cessation. Addictive Behaviors , 21, 721-732.
3.
Waltz, C.F., Strickland, O.L., & Lenz, E.R. (1991). Measurement in nursing research (3rd ed.). New York: Springer.