Gaya APA

S., S, -, H, R. (1999). ENGLISH BUSINESS CORRESPONDENCE : Third Edition / Suyarto - Hetty Rachdiana S. (Cet.1). Bandung: Humaniora Utama Press (HUP).

Gaya MLA

S., Suyarto, -, Hetty, Rachdiana. "ENGLISH BUSINESS CORRESPONDENCE : Third Edition / Suyarto - Hetty Rachdiana S.". Cet.1 Bandung: Humaniora Utama Press (HUP), 1999. Text.