APA Style
Model Secretarial Letters. (1989).
Indonesia:
Elex Media Komputindo.
Chicago Style
Model Secretarial Letters.
1st edition.
Indonesia:
Elex Media Komputindo,
1989.
Text.
MLA Style
Model Secretarial Letters.
1st edition.
Indonesia:
Elex Media Komputindo,
1989.
Text.
Turabian Style
Model Secretarial Letters.
Indonesia:
Elex Media Komputindo,
1989.
Print.