1. Bailin, S. (2002). Critical Thinking and Science Education. Science & Education, 11, 361–375.
2. Barak, M., Ben-Chaim, D., & Zoller, U. (2007). Purposely Teaching for the Promotion of Higher-order Thinking Skills: A Case of Critical Thinking. Research in Science Education, 37(4), 353–369.
3. Ennis, R.H. (1962). A concept of critical thinking: A proposed basis for research in the teaching and evaluation of critical thinking ability. Harvard Educational Review, 32, 81–111.
4. Ennis, R.H. (1987). A taxonomy of critical thinking dispositions and abilities. In J.B. Baron & R.J. Sternberg (Ed.), Teaching thinking skills: Theory and practice. N.Y.: W.H. Freeman and Company, 9–26.
5. Facione, P.A. (1990). Critical thinking. A statement of expert consensus for purposes of educational assessment and instruction. Millbrae, CA: California Academic Press.