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.