Gaya APA
Gartside, .
(1989).
Model Business Litter / L. Gartside
(
Ed. 3)
.
Jakarta:
Binarupa Aksara.
Gaya MLA
Gartside, .
"Model Business Litter / L. Gartside".
Ed. 3
Jakarta:
Binarupa Aksara,
1989.
Text.