ROGER C SCHANK. (2002). Designing world -class E Learning (0 07 137772 7). McGraw-Hill.
Čikaški stil citiranjaROGER C SCHANK. Designing World -class E Learning (0 07 137772 7). McGraw-Hill, 2002.
MLA način citiranjaROGER C SCHANK. Designing World -class E Learning (0 07 137772 7). McGraw-Hill, 2002.
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