Tri, S., S.(2003).Business English American Style : learn how they talk, think, work n socialize with conversation, study questions, culture tips n business letters / Sunu Tri Susatyo (Cet.1).:.
Gaya MLA
Susatyo, Sunu, Tri."Business English American Style : learn how they talk, think, work n socialize with conversation, study questions, culture tips n business letters / Sunu Tri Susatyo".Cet.1:,2003.Textbook.