APA Style
POE, Roy W.. (2004).
Handbook of Business Letters .
Jakarta:
BIP Gramedia.
Chicago Style
POE, Roy W..
Handbook of Business Letters.
Jakarta:
BIP Gramedia,
2004.
Text.
MLA Style
POE, Roy W..
Handbook of Business Letters.
Jakarta:
BIP Gramedia,
2004.
Text.
Turabian Style
POE, Roy W..
Handbook of Business Letters.
Jakarta:
BIP Gramedia,
2004.
Print.