1. Benefits of Nature Contact for Children
2. Chin, W. W. (1998). The partial least squares approach to structural equation modeling. Modern methods for business research, 295(2), 295-336.
3. Coffield, Frank. (1991). Vandalism & Graffiti. The State of the Art London, Calouste Gulbenkian Foundation.
4. Cohen, A. (1955). Delinquency Body, The culture of the gang New York: The Free Press.
5. Esau, V. G. (2007). The Influence of Vandalism in Schools on Learner's Academic Performance (Doctoral dissertation, Nelson Mandela Metropolitan University).