AACSB International. (2001). BizEd. AACSB International.
Lua i Stíl Chicago (17ú heag.)AACSB International. BizEd. St. Louis, MO: AACSB International, 2001.
Lua MLA (9ú heag.)AACSB International. BizEd. AACSB International, 2001.
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