GRIFFIN, R. W. (2015). International business a managerial perspective 8th ed. Pearson.
Lua i Stíl Chicago (17ú heag.)GRIFFIN, Ricky W. International Business a Managerial Perspective 8th Ed. Pearson, 2015.
Lua MLA (8ú heag.)GRIFFIN, Ricky W. International Business a Managerial Perspective 8th Ed. Pearson, 2015.
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