1. Abell, S. K., & Lederman, N. G. (eds). (2007). Handbook of research on science education. Mahwah, NJ: Lawrence Erlbaum Associates.
2. Adey, P., & Shayer, M. (1994). Really raising standards. London: Routledge.
3. Adey, P. S., Shayer, M., & Yates, C. (1995). Thinking science: The curriculum materials of the CASE project. Buckingham: Thomas Nelson & Son.
4. Akerson, V. L., Flick, L. B., & Lederman, N. G. (2000). The influence of primary children’s ideas in science on teaching practice. Journal of Research in Science Teaching, 37(4), 363-385.
5. Ausubel, D. P. (1968). Educational psychology, a cognitive view. New York: Holt, Rinehart and Winston.