Gaya APA
Bryman, Alan. (2001).
Social research methods .
New York:
Oxford University Press.
Gaya Chicago
Bryman, Alan.
Social research methods.
New York:
Oxford University Press,
2001.
.
Gaya MLA
Bryman, Alan.
Social research methods.
New York:
Oxford University Press,
2001.
.
Gaya Turabian
Bryman, Alan.
Social research methods.
New York:
Oxford University Press,
2001.
.