Gaya APA
Cyssco, D, R.
(1998).
Engglish Conversation And Correspondence For Secretaries
.
Jakarta:
Puspa Swara.
Gaya MLA
Cyssco, Dhanny, R..
"Engglish Conversation And Correspondence For Secretaries".
Jakarta:
Puspa Swara,
1998.
Buku Tex.