Gaya APA
Alexander, L. (1993).
New Concept English: Fluency in English, Integrated Course for advanced student .
Yogyakarta:
Kanisius.
Gaya MLA
Alexander, L.G..
"New Concept English: Fluency in English, Integrated Course for advanced student".
Yogyakarta:
Kanisius,
1993.
Text.