Gaya APA
Salim, Peter. (1989).
Modern Business Correspondence .
Jakarta:
Modern English Press.
Gaya Chicago
Salim, Peter.
Modern Business Correspondence.
Jakarta:
Modern English Press,
1989.
.
Gaya MLA
Salim, Peter.
Modern Business Correspondence.
Jakarta:
Modern English Press,
1989.
.
Gaya Turabian
Salim, Peter.
Modern Business Correspondence.
Jakarta:
Modern English Press,
1989.
.