1. American Association for Advancement of Science. (1989). Project 2061: Science for all Americans. Washington, DC: AAAS.
2. Bandeira, M., Dupre, F., Ianniello, M. G., & Vicentini, M. (1995). Una investigatión sobre habilidades para el aprendizaje científico (Study on students' abilities for scientific learning). Enseñanza de las Ciencias, 13(1), 46–54.
3. Cook, T. D., & Reichardt, Ch. S. (1982). Qualitative and quantitative methods in evaluation research. London: Sage Publications.
4. Cortazzi, M. (1993). Narrative analysis. London: Palmer.
5. Chi, M., Bassok, M., Lewis, M., Reimann, P., & Glaser, R. (1989). Self-explanations: How students study and use examples in learning to solve problem. Cognitive Science, 13, 345–367.