Gaya APA
Rubin, Allen, Earl R. Babbie. (2005).
Research methods for social work .
USA:
Thomson Learning.
Gaya Chicago
Rubin, Allen, Earl R. Babbie.
Research methods for social work.
USA:
Thomson Learning,
2005.
Text.
Gaya MLA
Rubin, Allen, Earl R. Babbie.
Research methods for social work.
USA:
Thomson Learning,
2005.
Text.
Gaya Turabian
Rubin, Allen, Earl R. Babbie.
Research methods for social work.
USA:
Thomson Learning,
2005.
Print.