7Spiro, R.J. Coulson, R. L. Tenth Annual Conference of the Cognitice Science Society [ M ]. New Jerssy : Edbaum, 1988. 375 - 383.
8Spiro, R , Jehng, J.. Cognitition, Education and Mulime- dia: Exploring Ideas in High Technology [M]. Hillsdale. New Jersey: Lawrence Erlabun Associates, 1990.
