Gaya APA
Stewart, M, M, ., [. (1978).
Business English and Communication (5th. ed.).
Ney York:
McGraw-Hill Book Company.
Gaya MLA
Stewart, Marrie, M, ..., [et.al].
"Business English and Communication".
5th. ed.
Ney York:
McGraw-Hill Book Company,
1978.
Text.