1. Akhmanova, O. S., Mel’chuk, I. A., Frumkina, R. M., & Paducheva, E. V. (1963).Exact methods of linguistics (D. G. Hays & D. V. Mohr, Trans.)- Los Angeles: University of California Press.
2. Ausubel, D. (1973). Some psychological and educational limitations of learning by discovery. In F. J. Crosswhite (Ed.),Teaching mathematics: Psychological foundations (pp. 222–237). Los Angeles: Jones.
3. Bauersfeld, H. (1988). Interaction, construction, and knowledge: Alternative perspectives for mathematics education. In T. Cooney & D. Grouws (Eds.),Effective mathematics teaching (pp. 27–46). Reston, VA: National Council of Teachers of Mathematics.
4. Bell, G. (1988). Number naming languages and the concept of “10”. In A. Borbas (Ed.),Proceedings of the Twelfth Annual Conference of the International Group for the Psychology of Mathematics Education (Vol. 1, pp. 154–161). Veszprem, Hungary: Program Committee.
5. Bell, G. (1989).The acquisition of initial place-value concepts in different linguistic environments. Unpublished doctoral thesis, Macquarie University.