Gaya APA
Neuman, Lawrence W.. (2009).
Social research methods (7).
Sebastopol, CA:
Prentice Hall.
Gaya Chicago
Neuman, Lawrence W..
Social research methods.
7
Sebastopol, CA:
Prentice Hall,
2009.
Text.
Gaya MLA
Neuman, Lawrence W..
Social research methods.
7
Sebastopol, CA:
Prentice Hall,
2009.
Text.
Gaya Turabian
Neuman, Lawrence W..
Social research methods.
7
Sebastopol, CA:
Prentice Hall,
2009.
Print.