APA Style
Customer Service. (1978).
Indonesia:
Elex Media Komputindo.
Chicago Style
Customer Service.
1st edition.
Indonesia:
Elex Media Komputindo,
1978.
Text.
MLA Style
Customer Service.
1st edition.
Indonesia:
Elex Media Komputindo,
1978.
Text.
Turabian Style
Customer Service.
Indonesia:
Elex Media Komputindo,
1978.
Print.