Gaya APA
Alexander, L, G. (1975).
New concept English : fluency in English an integrated course for advanced students (9th ed.).
Yogyakarta:
Kanisius.
Gaya MLA
Alexander, L., G..
"New concept English : fluency in English an integrated course for advanced students".
9th ed.
Yogyakarta:
Kanisius,
1975.
Text.