APA Format

47572. (2001). Guide to professional & businedd correspondence (Inggris-Indonesia). Jakarta : PPM

MLA Format

47572. Guide to professional & businedd correspondence (Inggris-Indonesia). Jakarta : PPM, 2001

Chicago Format

47572. Guide to professional & businedd correspondence (Inggris-Indonesia). Jakarta : PPM, 2001

Australian/Harvard Format

47572. 2001. Guide to professional & businedd correspondence (Inggris-Indonesia). PPM Jakarta