Gaya APA
Dugger, Jim. (1994).
Business letters for busy people (2e).
Singapura:
SS Mubarak and Brothers.
Gaya Chicago
Dugger, Jim.
Business letters for busy people.
2e
Singapura:
SS Mubarak and Brothers,
1994.
Buku.
Gaya MLA
Dugger, Jim.
Business letters for busy people.
2e
Singapura:
SS Mubarak and Brothers,
1994.
Buku.
Gaya Turabian
Dugger, Jim.
Business letters for busy people.
2e
Singapura:
SS Mubarak and Brothers,
1994.
Buku.