Gaya APA
HENDERSON, GF. (0000).
Business english essential .
New York:
McGraw-Hill.
Gaya Chicago
HENDERSON, GF.
Business english essential.
New York:
McGraw-Hill,
0000.
Text.
Gaya MLA
HENDERSON, GF.
Business english essential.
New York:
McGraw-Hill,
0000.
Text.
Gaya Turabian
HENDERSON, GF.
Business english essential.
New York:
McGraw-Hill,
0000.
Print.