1. Bodner, G. M. (1986). Constructivism: A theory of knowledge. Journal of Chemical Education, 63, 873–878.
2. Bodner, G. M. (2004). Twenty years of learning how to do research in chemical education, Journal of Chemical Education, 81, 618–628.
3. Briggs, M. W. (2004). A cognitive model of second-year organic chemistry students’ conceptualizations of mental molecular rotation, Unpublished Doctoral Thesis, Purdue University, West Lafayette.
4. Case, R., Okamoto, Y., Stephenson, K. M., & Bleiker, C. (1996). VIII. Summary and conclusions. In Y. Okamoto (Ed.), The Role of Central Conceptual Structures in the Development of Children’s Thought (Serial No. 246 ed., Vol. 61, pp. 189–263). Chicago: University of Chicago.
5. Deutsch, K. W. (1951). Mechanism, organism, and society: Some models in natural and social science. Philosophy of Science, 18(2), 230–252.