Gaya APA
Effendi, Sofian. (2011).
METODE PENELITIAN SURVAI .
Jakarta:
PT LP3ES.
Gaya Chicago
Effendi, Sofian.
METODE PENELITIAN SURVAI.
Jakarta:
PT LP3ES,
2011.
Text.
Gaya MLA
Effendi, Sofian.
METODE PENELITIAN SURVAI.
Jakarta:
PT LP3ES,
2011.
Text.
Gaya Turabian
Effendi, Sofian.
METODE PENELITIAN SURVAI.
Jakarta:
PT LP3ES,
2011.
Print.