Gaya APA
Bosticco, M., Budi, .
(1989).
Personal letters for business people
(
Ed. ke-3)
.
Jakarta:
Binarupa Aksara.
Gaya MLA
Bosticco, Mary., Budi, .
"Personal letters for business people".
Ed. ke-3
Jakarta:
Binarupa Aksara,
1989.
Text.