Yin, R. K. (2018). Case study research and applications (Sixth edition.). SAGE.
Lua i Stíl Chicago (17ú heag.)Yin, Robert K. Case Study Research and Applications. Sixth edition. Los Angeles: SAGE, 2018.
Lua MLA (8ú heag.)Yin, Robert K. Case Study Research and Applications. Sixth edition. SAGE, 2018.
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