Gaya APA
Harvard, Joseph, Rose, Felix, Ginting, Lukas. (1994).
Guide to Professional & Business Corespondence .
Jakarta Pusat:
Pustaka Binaman Pressindo.
Gaya Chicago
Harvard, Joseph, Rose, Felix, Ginting, Lukas.
Guide to Professional & Business Corespondence.
Jakarta Pusat:
Pustaka Binaman Pressindo,
1994.
.
Gaya MLA
Harvard, Joseph, Rose, Felix, Ginting, Lukas.
Guide to Professional & Business Corespondence.
Jakarta Pusat:
Pustaka Binaman Pressindo,
1994.
.
Gaya Turabian
Harvard, Joseph, Rose, Felix, Ginting, Lukas.
Guide to Professional & Business Corespondence.
Jakarta Pusat:
Pustaka Binaman Pressindo,
1994.
.