Gaya APA
Siregar, A. Hamid. (1996).
Business English and English Conversation (Cet.12).
Jakarta:
Pustaka Dian.
Gaya Chicago
Siregar, A. Hamid.
Business English and English Conversation.
Cet.12
Jakarta:
Pustaka Dian,
1996.
Text.
Gaya MLA
Siregar, A. Hamid.
Business English and English Conversation.
Cet.12
Jakarta:
Pustaka Dian,
1996.
Text.
Gaya Turabian
Siregar, A. Hamid.
Business English and English Conversation.
Cet.12
Jakarta:
Pustaka Dian,
1996.
Print.