Yin, R. K. (2009). Case study research: Design and methods (4th ed.). Los Angeles, Calif. ; London: Sage Publications.
Chicago Stili AlıntıYin, Robert K. Case Study Research: Design and Methods. 4th ed. Los Angeles, Calif. ; London: Sage Publications, 2009.
MLA AlıntıYin, Robert K. Case Study Research: Design and Methods. 4th ed. Los Angeles, Calif. ; London: Sage Publications, 2009.
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