Gaya APA

Hananto, Y, S., Sofyan, F. (2017). Conversation And Correspondence In Business English (1). Jakarta: Pustaka Tarbiyah Baru.

Gaya MLA

Hananto, Yoga, Setyo., Sofyan, Fahmi. "Conversation And Correspondence In Business English". 1 Jakarta: Pustaka Tarbiyah Baru, 2017. Text.