Gomm, R., Hammersley, M., Foster, P., & Foster, P. (2000). Case study method: Key issues, key texts. London: Sage.
Παραπομπή Chicago StyleGomm, Roger, Martyn Hammersley, Peter Foster, and Peter Foster. Case Study Method: Key Issues, Key Texts. London: Sage, 2000.
Παραπομπή MLAGomm, Roger, Martyn Hammersley, Peter Foster, and Peter Foster. Case Study Method: Key Issues, Key Texts. London: Sage, 2000.
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