Hair, J. F., Celsi, M. W., Money, A. H., Samouel, P., & Page, M. J. (2011). Essentials of business research methods (Second edition.). M.E. Sharpe.
Chicago-viite (17. p.)Hair, Joseph F., Mary Wolfinbarger Celsi, Arthur H. Money, Philiph Samouel, ja Michael J. Page. Essentials of Business Research Methods. Second edition. Armonk, N.Y: M.E. Sharpe, 2011.
MLA-viite (8. p.)Hair, Joseph F., et al. Essentials of Business Research Methods. Second edition. M.E. Sharpe, 2011.
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