DeCecco, J. P., & Crawford, W. R. (1977). Psychology of learning and instruction: Educational psychology (2nd. ed.). Prentice Hall.
Chicago Stili AlıntıDeCecco, John P., ve William R. Crawford. Psychology of Learning and Instruction: Educational Psychology. 2nd. ed. New York: Prentice Hall, 1977.
MLA AlıntıDeCecco, John P., ve William R. Crawford. Psychology of Learning and Instruction: Educational Psychology. 2nd. ed. Prentice Hall, 1977.
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