Gaya APA

Communicative English For Secretaries : A Comprehensive Communication Workbook For Students Of Business And Secretarial Studies. (2009). Yogyakarta: Putaka Book Publisher.

Gaya MLA

Communicative English For Secretaries : A Comprehensive Communication Workbook For Students Of Business And Secretarial Studies. . Yogyakarta: Putaka Book Publisher, 2009. Text.