Gill, J., & Phil Johnson. (2010). Research methods for managers/4e (4th ed.). Sage Publications.
Dyfyniad Arddull ChicagoGill, John, and Phil Johnson. Research Methods for Managers/4e. 4th ed. London: Sage Publications, 2010.
Dyfyniad MLAGill, John, and Phil Johnson. Research Methods for Managers/4e. 4th ed. Sage Publications, 2010.
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