Trappe, Tonya Intelligent business - Upper Intermediate business English (Style guide) - Harlow Nhà Xuất Bản Tổng hợp TP.HCM 2006 - 31 p. 21 cm. 005676 It 494 ISBN: 0582848091 Subjects--Topical Terms: English language--Business English--Study and teaching Dewey Class. No.: 428.2 / I-61