Gaya APA
Gerring, John. (2012).
Social science methodology: a unified framework (2nd ed.).
enk:
Cambridge University Press.
Gaya Chicago
Gerring, John.
Social science methodology: a unified framework.
2nd ed.
enk:
Cambridge University Press,
2012.
Buku.
Gaya MLA
Gerring, John.
Social science methodology: a unified framework.
2nd ed.
enk:
Cambridge University Press,
2012.
Buku.
Gaya Turabian
Gerring, John.
Social science methodology: a unified framework.
2nd ed.
enk:
Cambridge University Press,
2012.
Buku.