Gaya APA
Secretarial Contacts: Communication skills for secretaries and personal assistants. (1989).
New York:
Prentice Hall.
Gaya Chicago
Secretarial Contacts: Communication skills for secretaries and personal assistants.
.
New York:
Prentice Hall,
1989.
Buku.
Gaya MLA
Secretarial Contacts: Communication skills for secretaries and personal assistants.
.
New York:
Prentice Hall,
1989.
Buku.
Gaya Turabian
Secretarial Contacts: Communication skills for secretaries and personal assistants.
New York:
Prentice Hall,
1989.
Buku.