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2. Bailin, Sharon, and Mark Battersby. 2010. Reason in the balance: An inquiry approach to critical thinking. Toronto: McGraw-Hill Ryerson.
3. Cohen, L. Jonathan. 1977. The probable and the provable. Oxford: Clarendon Press.
4. Cohen, L. Jonathan. 1989. An introduction to the philosophy of induction and probability. Oxford: Oxford University Press.
5. Cohen, L. Jonathan. 1992. An essay on belief and acceptance. New York: Clarendon Press.