Gaya APA
Alexander, L. (1975).
New Concept English Fluency In English An Integrated Course For Advanced Student .
Yogyakarta:
Kanisius.
Gaya MLA
Alexander, L.G..
"New Concept English Fluency In English An Integrated Course For Advanced Student".
Yogyakarta:
Kanisius,
1975.
Buku Tex.