APA aipamena

SUPONO, I. (1991). Business dialogues: Indonesian - English. Titik Terang.

Chicago Style aipamena

SUPONO, Idhie. Business Dialogues: Indonesian - English. Jakarta: Titik Terang, 1991.

MLA aipamena

SUPONO, Idhie. Business Dialogues: Indonesian - English. Titik Terang, 1991.