1. Armon-Jones, C. (1986). “The Thesis of Constructionism”. In R. Harré (ed.), The Social Construction of Emotions (pp. 33–56). Oxford: Blackwell.
2. Balacheff, N. (1986). “Cognitive Versus Situational Analysis of Problem-Solving Behavior.” For the Learning of Mathematics, 6 (3), 10–12.
3. Bateson, G. (1973). Steps To An Ecology Of Mind. London: Paladin.
4. Bishop, A. (1985). “The Social Construction of Meaning — A Significant Develoment for Mathematics Education?” For The Learning of Mathematics, 5, (I), 24–28.
5. Blumer, H. (1969). Symbolic Interactionism. Englewood Cliffs, NJ: Prentice-Hall.