1. Angell, R. B. (1964). Reasoning and logic. New York: Appleton-Century-Crofts.
2. Aristotle. (1960). Rhetoric (L. Cooper, Trans.). New York: Appleton-Century-Crofts.
3. Baron, J. (1988). Thinking and deciding. Cambridge, England: Cambridge University Press.
4. Baron, J. (1991). Beliefs about thinking. In J. F. Voss, D. N. Perkins, & J. W. Segal (Eds.), Informal reasoning and education (pp. 169-186). Hillsdale, NJ: Lawrence Erlbaum Associates, Inc.