Gaya APA
ALEXANDER, L.G.. (1975).
New concept english practice and progress .
Yogyakarta:
Kansius.
Gaya Chicago
ALEXANDER, L.G..
New concept english practice and progress.
Yogyakarta:
Kansius,
1975.
Text.
Gaya MLA
ALEXANDER, L.G..
New concept english practice and progress.
Yogyakarta:
Kansius,
1975.
Text.
Gaya Turabian
ALEXANDER, L.G..
New concept english practice and progress.
Yogyakarta:
Kansius,
1975.
Print.