Gaya APA
Gerring, John. (2007).
Case Study Research : Principles and Practice .
Cambridge:
Cambridge University Press.
Gaya Chicago
Gerring, John.
Case Study Research : Principles and Practice.
Cambridge:
Cambridge University Press,
2007.
Text.
Gaya MLA
Gerring, John.
Case Study Research : Principles and Practice.
Cambridge:
Cambridge University Press,
2007.
Text.
Gaya Turabian
Gerring, John.
Case Study Research : Principles and Practice.
Cambridge:
Cambridge University Press,
2007.
Print.