Adams, J. (2007). Research methods for graduate business and social science students. SAGE.
Lua i Stíl Chicago (17ú heag.)Adams, John. Research Methods for Graduate Business and Social Science Students. New Delhi ; Thousand Oaks: SAGE, 2007.
Lua MLA (8ú heag.)Adams, John. Research Methods for Graduate Business and Social Science Students. SAGE, 2007.
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