Gaya APA
CHANG, Y., SULLIVAN, R, S. (1996).
QSB + quantitative systems for business plus .
United States of America:
Prentice Hall.
Gaya MLA
CHANG, Yih-Long., SULLIVAN, Robert, S..
"QSB + quantitative systems for business plus".
United States of America:
Prentice Hall,
1996.
Buku.