1. Ajzen, I. (1985). From intentions to actions: A theory of planned behaviour. In J., Kuhl, and J., Beckmann (Eds.), Action control: From cognition to behaviour. Berlin: Springer-Verlag.
2. Ajzen, I. (1991). The theory of planned behaviour. Organizational Behavior and Human Decision Processes, 50, 179–211.
3. Ajzen I., and Fishbein, M. (1980). Understanding attitudes and predicting social behaviour. Englewood Cliffs, New Jersey: Prentice-Hall.
4. Bennett, J (2003). Review of school feeding projects.
5. Blankenship, K.M., Friedman, S.R., Dworkin, S., and Mantel, J.E. (2006). Structural interventions: Challenges and opportunities for research. Journal of Urban Health: Bulletin of the New York Academy of Medicine, 83, 59–72.