Strigel, D. F. (2011). Managers, Can you hear me now? Tata Mcgraw Hill.
Lua i Stíl Chicago (17ú heag.)Strigel, Denny F. Managers, Can You Hear Me Now? New Delhi: Tata Mcgraw Hill, 2011.
Lua MLA (9ú heag.)Strigel, Denny F. Managers, Can You Hear Me Now? Tata Mcgraw Hill, 2011.
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