Saunders, M. N. K., Lewis, P., & Thornhill, A. (2009). Research methods for business students (5th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Saunders, M. N. K., Philip Lewis, agus Adrian Thornhill. Research Methods for Business Students. 5th ed. New York: Prentice Hall, 2009.
Lua MLA (9ú heag.)Saunders, M. N. K., et al. Research Methods for Business Students. 5th ed. Prentice Hall, 2009.
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