Gaya APA
Baird, J, W., Stull, J, B. (1983).
Business Communication Strategis and Solution .
United States:
McGraw-Hill Book Company.
Gaya MLA
Baird, John, W.., Stull, James, B..
"Business Communication Strategis and Solution".
United States:
McGraw-Hill Book Company,
1983.
Text.