Gaya APA
Ballou, R, H. (1985).
Business logistics management : : planning and control (2nd ed.).
Englewood Cliffs, New Jersey:
Prentice-Hall, Inc..
Gaya MLA
Ballou, Ronald, H..
"Business logistics management : : planning and control".
2nd ed.
Englewood Cliffs, New Jersey:
Prentice-Hall, Inc.,
1985.
BUKU.