Saunders, M., Lewis, P., & Thornhill, A. (2012). Research methods for business students (6th ed.). Pearson.
Lua i Stíl Chicago (17ú heag.)Saunders, Mark, Philip Lewis, agus Adrian Thornhill. Research Methods for Business Students. 6th ed. Harlow, England ; New York: Pearson, 2012.
Lua MLA (8ú heag.)Saunders, Mark, et al. Research Methods for Business Students. 6th ed. Pearson, 2012.
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