Problem Solving
Chakravarti, J. C. (1990). Arithmetic for the Use of Schools and Colleges. Calcutta: P.C. Chakravarti & Co.
Jargocki, C. P (1976). Science Braintwisters and Paradoxes. New York, NY: Scribner Publishers.
Jargocki, C. P. (1983). More Science Braintwisters and Paradoxes. New York, NY: Van Nostrand Reinhold Company.
Lochhead, J. (2001). Thinkback: A User’s Guide to Minding the Mind. Mahway, NJ: Lawrence Erlbaum Associates.
Lochhead, J., and J. Clement (1979). Cognitive Process Instruction: Research on Teaching Thinking Skills. Philadelphia, Pennsylvania: The Franklin Institute Press.
Whimbey, A., and J. Lochhead (1984). Beyond Problem Solving and Comprehension. Hillsdale, NJ: Lawrence Erlbaum Associates.