APA Style
Efektive Study. (1946).
Indonesia:
Elex Media Komputindo.
Chicago Style
Efektive Study.
1st edition.
Indonesia:
Elex Media Komputindo,
1946.
Text.
MLA Style
Efektive Study.
1st edition.
Indonesia:
Elex Media Komputindo,
1946.
Text.
Turabian Style
Efektive Study.
Indonesia:
Elex Media Komputindo,
1946.
Print.