Gaya APA
Lukito, W. (1991).
English for specific purposes : dialogues for secretaries 2 / Lukito W. (Cet.3).
Jakarta:
Gramedia.
Gaya MLA
Lukito, W..
"English for specific purposes : dialogues for secretaries 2 / Lukito W.".
Cet.3
Jakarta:
Gramedia,
1991.
Textbook.