8Berrill, D. P. Issues of audience: Egocentrism revisited [A]. In R. Andrews (ed.) Rebirth of Rhetoric: Essays in Language, Culture and Education [C]. London: Routledge, 1992: 81-101.
9Dewey, John. How We Think [M]. New York: D. C. Heath and Company, 1933.
10Facione, E California Critical Thinking Skills Test [M]. Millbrae: The California Academic Press, 1990.
