Gaya APA
CYSSCO, D, R., NOVIKA, . (2008).
English Coversation and Correspondance for Secretaries (Ed. Revisi, Cet. 13).
Jakarta:
Puspa Swara.
Gaya MLA
CYSSCO, Dhanny, R.., NOVIKA, .
"English Coversation and Correspondance for Secretaries".
Ed. Revisi, Cet. 13
Jakarta:
Puspa Swara,
2008.
Text.