Gaya APA
White, Graham, Drake, Susan. (1989).
Business Initiatives .
England:
Longman.
Gaya Chicago
White, Graham, Drake, Susan.
Business Initiatives.
England:
Longman,
1989.
Buku.
Gaya MLA
White, Graham, Drake, Susan.
Business Initiatives.
England:
Longman,
1989.
Buku.
Gaya Turabian
White, Graham, Drake, Susan.
Business Initiatives.
England:
Longman,
1989.
Buku.